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Table 3. Variances for U.S. import price indexes for industries: January 2021–December 2021

Table 3. Variances for U.S. import price indexes for industries: January 2021–December 2021
Description	NAICS	1-month median absolute percent change	1-month median standard error	3-month median absolute percent change	3-month median standard error	12-month median absolute percent change	12-month median standard error
Nonmanufacturing	ZNONMANU	4.5	0.49	11.2	0.89	55.4	2.01
Agriculture, forestry, fishing and hunting	Z11	2.0	1.75	4.2	3.29	7.4	5.07
Crop production	Z111	2.4	2.16	4.2	4.32	5.8	5.86
Vegetable and melon farming (Dec. 2017=100)	Z1112	5.2	5.06	5.4	6.28	15.5	12.11
Fruit and tree nut farming	Z1113	3.1	2.07	6.1	5.94	9.4	10.77
Noncitrus fruit and tree nut farming	Z11133	2.8	1.99	6.1	5.68	9.2	11.27
Other noncitrus fruit farming	Z111339	3.2	1.75	9.7	2.19	10.2	4.47
Mining	Z21	5.3	0.31	13.8	0.50	76.6	1.10
Oil and gas extraction	Z211	5.4	0.27	13.9	0.38	79.6	0.76
Mining (except oil and gas)	Z212	2.6	2.69	11.1	6.87	23.8	14.36
Crude petroleum extraction (1)	Z21112	5.3	0.00	14.3	0.00	80.4	0.00
Natural gas extraction	Z21113	8.6	2.34	24.1	3.61	80.3	7.38
Mining (except oil and gas)	Z212	2.6	2.69	11.1	6.87	23.8	14.36
Manufacturing	ZMANU	0.7	0.12	2.0	0.21	6.7	0.44
Manufacturing, part 1	Z31	0.6	0.18	1.6	0.43	5.2	0.73
Food manufacturing	Z311	1.1	0.52	3.0	0.91	13.2	2.13
Grain and oilseed milling	Z3112	1.9	1.59	7.6	2.75	31.6	8.41
Starch and vegetable fats and oils manufacturing	Z31122	2.5	1.93	9.5	3.25	43.7	8.76
Soybean and other oilseed processing	Z311224	2.6	1.91	10.1	3.11	48.3	6.74
Sugar and confectionery product manufacturing	Z3113	0.5	0.91	0.6	1.39	2.3	1.96
Fruit and vegetable preserving and specialty food manufacturing	Z3114	1.4	0.93	2.3	1.50	1.3	2.00
Animal slaughtering and processing	Z3116	3.9	1.01	6.6	2.01	22.5	4.33
Animal (except poultry) slaughtering	Z311611	4.1	1.05	7.1	2.13	23.5	4.43
Seafood product preparation and packaging	Z3117	1.3	0.68	3.9	0.91	17.1	1.69
Other food manufacturing	Z3119	0.6	1.64	1.2	3.28	4.2	7.21
Beverage and tobacco product manufacturing	Z312	0.1	0.16	0.5	0.33	2.3	1.28
Beverage manufacturing (Dec. 2009=100)	Z3121	0.1	0.16	0.3	0.38	3.0	1.11
Breweries (Dec. 2006=100)	Z31212	0.0	0.03	0.1	0.13	2.1	0.14
Wineries	Z31213	0.2	0.23	0.5	0.63	5.9	3.45
Distilleries	Z31214	0.0	0.03	0.2	0.28	0.2	0.99
Textile mills (Dec. 2011=100)	Z313	0.8	0.51	2.2	1.44	5.7	2.03
Fabric mills	Z3132	0.9	0.68	2.8	1.17	5.5	2.76
Textile product mills	Z314	0.5	0.36	0.9	0.85	3.4	1.75
Textile furnishings mills	Z3141	0.2	0.22	0.7	0.70	1.7	0.94
Curtain and linen mills	Z31412	0.2	0.17	0.4	0.68	1.6	0.83
Other textile product mills (Dec. 2006=100)	Z3149	1.2	0.70	2.7	1.31	5.6	4.79
All other textile product mills (Dec. 2012=100)	Z31499	1.1	0.88	3.0	1.82	6.6	6.50
Apparel manufacturing	Z315	0.1	0.15	0.3	0.35	0.3	0.75
Cut and sew apparel manufacturing (Dec. 2009=100)	Z3152	0.1	0.16	0.3	0.37	0.4	0.69
Men and boys cut and sew apparel manufacturing	Z31522	0.1	0.23	0.6	0.56	1.4	0.77
Women and girls cut and sew apparel manufacturing (Dec. 2013=100)	Z31524	0.2	0.21	0.3	0.41	0.4	0.89
Apparel accessories and other apparel manufacturing	Z3159	0.4	0.37	0.8	1.22	1.5	3.02
Leather and allied product manufacturing	Z316	0.3	0.14	0.8	0.34	1.4	0.59
Footwear manufacturing	Z3162	0.2	0.10	0.7	0.27	0.7	0.82
Manufacturing, part 2	Z32	1.5	0.49	4.4	0.79	15.3	1.69
Wood product manufacturing	Z321	12.6	2.99	30.3	6.68	72.7	12.83
Paper manufacturing	Z322	1.0	0.71	2.8	1.26	7.3	2.60
Pulp, paper, and paperboard mills	Z3221	1.5	1.36	5.3	1.94	15.1	4.28
Converted paper product manufacturing	Z3222	0.3	0.32	1.2	0.74	2.3	1.74
Paper bag and coated and treated paper manufacturing (Dec. 2006=100)	Z32222	0.1	0.32	0.7	0.81	2.1	1.48
Petroleum and coal products manufacturing	Z324	4.8	2.27	12.5	3.34	56.2	13.00
Chemical manufacturing	Z325	1.0	0.23	3.0	0.52	9.4	0.98
Basic chemical manufacturing	Z3251	2.6	0.57	8.2	1.30	25.8	2.78
Other basic inorganic chemical manufacturing (Dec. 2008=100)	Z32518	5.1	1.24	16.2	3.09	46.6	6.91
Other basic organic chemical manufacturing	Z32519	2.0	0.67	6.3	1.43	21.2	3.01
All other basic organic chemical manufacturing	Z325199	1.4	0.40	4.8	0.72	15.9	2.32
Pesticide, fertilizer, other agricult. chemical manufacturing (Dec. 2007=100)	Z3253	5.8	1.79	19.0	3.64	98.0	12.17
Fertilizer manufacturing	Z32531	6.8	2.07	22.1	4.39	115.3	14.78
Pharmaceutical and medicine manufacturing	Z3254	0.1	0.13	0.4	0.45	1.6	0.97
Pharmaceutical preparation manufacturing	Z325412	0.1	0.17	0.5	0.52	1.9	0.84
Biological product (except diagnostic) manufacturing	Z325414	0.1	0.08	0.2	0.75	1.7	2.51
Other chemical product and preparation manufacturing (Dec. 2006=100)	Z3259	0.4	0.41	1.7	1.00	1.5	1.33
All other chemical product and prep. manufacturing (Dec. 2016=100)	Z32599	1.0	0.63	2.5	1.60	3.0	2.80
Plastics and rubber products manufacturing	Z326	0.3	0.31	1.1	0.74	4.2	1.44
Plastics product manufacturing	Z3261	0.4	0.45	1.1	1.07	4.6	2.26
Plastics packaging materials and film and sheet manufacturing	Z32611	1.1	0.80	4.0	1.23	10.5	3.90
Unlaminated plastics film and sheet (except packaging) manufacturing	Z326113	1.1	0.83	4.3	1.30	11.1	4.19
Other plastics product manufacturing	Z32619	0.4	0.55	1.1	1.33	3.2	2.88
Rubber product manufacturing	Z3262	0.3	0.31	1.0	0.77	2.9	1.19
Tire manufacturing	Z32621	0.3	0.24	1.0	1.40	1.4	1.82
Nonmetallic mineral product manufacturing	Z327	0.4	0.34	1.0	0.63	2.4	1.10
Other nonmetallic mineral product manufacturing	Z3279	0.8	0.80	1.4	1.70	4.3	2.93
All other nonmetallic mineral product manufacturing	Z32799	1.0	1.05	1.1	2.00	4.7	3.37
Manufacturing, part 3	Z33	0.4	0.07	1.3	0.14	4.6	0.27
Primary metal manufacturing	Z331	1.8	0.43	6.9	0.73	31.2	2.20
Iron and steel mills and ferroalloy manufacturing	Z3311	3.6	1.26	12.5	2.17	51.0	8.09
Alumina and aluminum production and processing	Z3313	3.0	0.47	8.4	1.45	46.2	3.50
Alumina refining and primary aluminum production	Z331313	2.6	0.09	10.2	0.26	54.6	1.18
Nonferrous metal (except aluminum) production and processing	Z3314	3.4	0.32	9.3	0.55	32.1	0.99
Nonferrous metal (except aluminum) smelting and refining	Z33141	2.1	0.12	7.7	0.29	36.1	0.74
Fabricated metal product manufacturing	Z332	1.2	0.33	3.7	0.73	9.9	1.43
Cutlery and handtool manufacturing	Z3322	0.3	0.22	1.1	0.36	2.4	0.85
Metal kitchen cookware, utensil, cutlery, and flatware manufacturing	Z332215	0.3	0.26	0.5	0.43	2.6	0.85
Hardware manufacturing	Z3325	0.8	0.48	2.2	1.02	5.5	2.57
Machine shops; and screw, nut, and bolt manufacturing (Dec. 2012=100)	Z3327	1.8	1.32	6.0	4.29	13.8	6.23
Other fabricated metal product manufacturing	Z3329	0.6	0.31	2.0	0.62	5.6	1.18
Metal valve manufacturing	Z33291	0.5	0.29	1.4	0.49	4.7	0.84
Industrial valve manufacturing	Z332911	0.3	0.22	0.8	0.47	3.0	1.23
All other fabricated metal product manufacturing	Z33299	0.6	0.44	2.2	1.26	6.5	2.50
Machinery manufacturing	Z333	0.2	0.17	0.7	0.28	2.5	0.51
Agriculture, construction, and mining machinery manufacturing	Z3331	0.3	0.25	1.3	0.79	3.4	1.25
Agricultural implement manufacturing (Dec. 2016=100)	Z33311	0.1	0.21	0.5	0.46	1.9	0.76
Farm machinery and equipment manufacturing	Z333111	0.1	0.17	0.5	0.51	2.2	0.75
Construction machinery manufacturing	Z33312	0.5	0.33	1.5	0.98	3.7	1.57
Industrial machinery manufacturing	Z3332	0.1	0.14	0.4	0.34	3.0	1.47
Other industrial machinery manufacturing	Z333249	0.3	0.27	0.9	0.68	4.0	2.06
Commercial and service industry machinery manufacturing	Z3333	0.2	0.20	0.5	0.43	1.8	0.80
Other commercial and service industry machinery manufacturing	Z333318	0.3	0.35	0.9	0.76	2.8	1.54
Ventilation, heating, air-conditioning, and commercial refrigeration equipment	Z3334	0.4	0.25	1.0	0.64	2.6	1.26
Air-conditioning, heating, & industrial refrigeration equipment manufacturing	Z333415	0.3	0.19	0.6	0.86	1.1	1.19
Metalworking machinery manufacturing	Z3335	0.5	0.29	0.9	0.95	1.4	1.15
Machine tool manufacturing	Z333517	0.2	0.25	0.6	0.65	0.4	0.71
Engine, turbine, and power transmission equipment manufacturing	Z3336	0.1	0.16	0.4	0.50	1.2	1.01
Other engine equipment manufacturing	Z333618	0.1	0.19	0.1	0.36	0.9	1.44
Other general purpose machinery manufacturing	Z3339	0.2	0.19	0.6	0.50	1.2	1.03
Pump and compressor manufacturing (Dec. 2013=100)	Z33391	0.2	0.30	0.3	0.69	0.4	1.75
Measuring, dispensing, and other pumping equipment manufacturing	Z333914	0.1	0.19	0.8	0.96	2.6	3.56
Material handling equipment manufacturing	Z33392	0.1	0.17	0.3	0.36	2.1	0.94
Industrial truck, tractor, trailer, and stacker machinery manufacturing	Z333924	0.2	0.15	0.4	0.43	1.7	0.65
All other general purpose machinery manufacturing	Z33399	0.2	0.22	0.6	0.64	1.6	1.58
All other miscellaneous general purpose machinery manufacturing	Z333999	0.4	0.37	0.7	0.94	2.2	3.00
Computer and electronic product manufacturing	Z334	0.2	0.11	0.5	0.24	0.9	0.37
Computer and peripheral equipment manufacturing	Z3341	0.3	0.20	0.4	0.34	0.7	0.52
Computer terminal and other computer peripheral equipment manufacturing	Z334118	0.3	0.18	0.8	0.35	2.2	0.60
Communications equipment manufacturing	Z3342	0.1	0.07	0.3	0.15	0.4	0.36
Audio and video equipment manufacturing	Z3343	0.6	0.79	1.7	1.35	4.6	1.62
Semiconductor and other electronic component manufacturing	Z3344	0.3	0.31	1.1	0.65	0.9	0.92
Semiconductor and related devices manufacturing	Z334413	0.3	0.35	0.5	0.79	1.9	1.20
Printed circuit assembly (electonric assembly) manufacturing	Z334418	0.9	0.60	2.9	1.01	6.5	2.10
Navigational, measuring, electromedical, and control instruments	Z3345	0.1	0.09	0.2	0.29	0.4	0.68
Electromedical and electrotherapeutic apparatus manufacturing	Z334510	0.2	0.12	0.2	0.34	0.4	0.53
Instrument manufacturing for measuring and testing electricity	Z334515	0.0	0.09	0.3	0.27	1.1	0.92
Analytical laboratory instrument manufacturing	Z334516	0.3	0.28	0.7	0.44	2.6	1.02
Other measuring and controlling device manufacturing	Z334519	0.4	0.24	1.0	0.48	3.4	1.88
Manufacturing and reproducing magnetic and optical media	Z3346	0.5	0.32	2.2	0.86	5.2	7.90
Blank magnetic and optical recording media manufacturing	Z334613	0.7	0.34	2.5	0.92	5.0	8.60
Electrical equipment, appliance, and component manufacturing	Z335	0.3	0.20	0.9	0.45	1.0	0.60
Electric lighting equipment manufacturing	Z3351	0.4	0.24	0.9	0.52	1.4	0.73
Lighting fixture manufacturing	Z33512	0.5	0.26	0.9	0.56	1.5	0.79
Other lighting equipment manufacturing	Z335129	0.4	0.31	1.0	0.78	1.9	1.16
Household appliance manufacturing	Z3352	0.4	0.31	1.4	0.79	1.2	0.77
Small electrical appliance manufacturing	Z33521	0.4	0.32	1.4	0.72	1.8	1.65
Major household appliance manufacturing	Z33522	0.7	0.49	1.7	1.05	0.9	1.76
Electrical equipment manufacturing (Dec. 2017=100)	Z3353	0.2	0.25	0.5	0.49	1.1	0.95
Motor and generator manufacturing	Z335312	0.1	0.21	1.1	1.11	2.2	1.54
Communication and energy wire and cable manufacturing	Z33592	0.6	0.71	1.8	1.31	7.5	4.71
Other communication and energy wire manufacturing	Z335929	0.5	0.66	2.0	1.30	8.5	5.19
All other electrical equipment and component manufacturing	Z33599	0.4	0.68	0.9	1.53	0.8	1.59
All other miscellaneous electrical equipment and component manufacturing	Z335999	0.3	0.55	0.5	1.36	0.9	1.35
Transportation equipment manufacturing	Z336	0.1	0.07	0.5	0.14	1.9	0.37
Motor vehicle manufacturing	Z3361	0.1	0.03	0.3	0.11	1.2	0.38
Automobile and light duty motor vehicle manufacturing	Z33611	0.0	0.03	0.3	0.12	1.1	0.41
Automobile manufacturing	Z336111	0.0	0.01	0.1	0.10	0.5	0.26
Heavy duty truck manufacturing (Dec. 2015=100)	Z33612	0.0	0.00	0.0	0.00	0.7	0.02
Motor vehicle parts manufacturing	Z3363	0.3	0.14	0.8	0.31	2.7	0.70
Motor vehicle gasoline engine and engine parts manufacturing	Z33631	0.2	0.12	0.4	0.22	1.0	0.45
Motor vehicle electrical and electronic equipment manufacturing	Z33632	0.5	0.30	1.3	1.01	1.9	1.27
Motor vehicle brake system manufacturing	Z33634	0.5	0.51	1.8	1.16	4.6	1.49
Motor vehicle transmission and power train parts manufacturing	Z33635	0.1	0.12	1.1	0.54	2.2	1.48
Other motor vehicle parts manufacturing	Z33639	0.4	0.29	1.1	0.84	4.8	1.89
Aerospace product and parts manufacturing	Z3364	0.2	0.15	0.4	0.32	2.6	0.86
Aircraft engines and engine parts manufacturing	Z336412	0.2	0.15	0.6	0.45	3.9	1.58
Other aircraft parts and auxiliary equipment manufacturing	Z336413	0.1	0.25	0.3	0.54	1.3	0.53
Other transportation equipment manufacturing	Z3369	0.3	0.36	0.9	0.81	2.5	1.70
Motorcycle, bicycle, and parts manufacturing	Z336991	0.3	0.37	0.8	0.85	3.4	2.11
Furniture and related product manufacturing	Z337	0.5	0.24	1.1	0.44	3.0	0.95
Household and institutional furniture and kitchen cabinet manufacturing	Z3371	0.5	0.27	1.1	0.51	3.2	1.25
Upholstered household furniture manufacturing	Z337121	0.3	0.28	1.1	0.43	3.1	0.96
Nonupholstered wood household furniture manufacturing	Z337122	0.4	0.31	0.9	0.45	3.0	0.64
Office furniture (including fixtures) manufacturing	Z3372	0.3	0.34	1.2	0.71	3.7	1.34
Miscellaneous manufacturing	Z339	0.3	0.38	0.3	0.72	1.8	1.43
Medical equipment and supplies manufacturing	Z3391	0.5	0.87	1.7	1.69	4.5	4.15
Surgical and medical instrument manufacturing	Z339112	0.1	0.11	0.5	0.50	1.7	1.17
Surgical appliance and supplies manufacturing	Z339113	1.2	1.90	4.0	3.85	9.5	9.50
Other miscellaneous manufacturing	Z3399	0.6	0.25	1.2	0.51	3.1	1.01
Jewelry and silverware manufacturing	Z33991	0.5	0.58	2.0	0.87	4.0	0.94
Sporting and athletic goods manufacturing	Z33992	0.7	0.50	1.6	0.80	2.8	0.83
Doll, toy, and game manufacturing	Z33993	0.1	0.17	0.3	0.59	1.7	0.99
All other miscellaneous manufacturing	Z33999	0.4	0.34	1.3	0.72	5.5	3.13
All other miscellaneous manufacturing	Z339999	0.3	0.35	0.7	0.95	3.1	1.46
Footnotes: (1) Index calculated using strictly alternative price data from one or more secondary sources. Indexes calculated using this method will have standard error values of zero.

Last Modified Date: August 11, 2022