Chart 3a. All-payer indexes for physicians’ services, January 2016–March 2020
Date	Comparison unchained Lowe	Consumer Price Index	Medical claims mixed quantity	Medical claims unchained Lowe	Medical claims chained Törnqvist
Jan 2016	100.00	100.00	100.00	100.00	100.00
Feb 2016	100.16	100.32	100.19	100.05	100.12
Mar 2016	100.03	100.47	100.19	100.04	100.12
Apr 2016	100.39	100.55	100.33	100.15	100.27
May 2016	100.66	101.44	100.75	100.66	100.75
Jun 2016	100.68	101.82	100.99	100.78	100.86
Jul 2016	100.81	102.47	101.04	100.98	101.03
Aug 2016	100.90	103.03	101.12	101.06	101.19
Sep 2016	100.79	103.03	101.22	101.24	101.20
Oct 2016	100.70	102.83	101.18	101.12	101.11
Nov 2016	100.79	103.56	101.48	101.40	101.35
Dec 2016	100.78	103.67	101.71	101.64	101.63
Jan 2017	101.03	103.77	101.97	101.90	101.88
Feb 2017	101.32	103.89	101.92	101.94	101.87
Mar 2017	101.25	103.52	101.75	101.82	101.77
Apr 2017	101.17	102.42	101.65	101.67	101.64
May 2017	101.26	102.24	101.69	101.62	101.61
Jun 2017	101.29	101.84	101.67	101.65	101.64
Jul 2017	101.25	101.91	101.82	101.69	101.69
Aug 2017	101.42	102.18	101.53	101.63	101.62
Sep 2017	101.45	102.23	101.83	101.94	101.90
Oct 2017	101.75	102.20	101.97	102.09	101.99
Nov 2017	101.95	101.65	102.03	102.19	102.06
Dec 2017	102.11	101.84	102.36	102.64	102.50
Jan 2018	102.20	102.20	102.54	102.89	102.72
Feb 2018	102.22	102.58	102.49	102.78	102.59
Mar 2018	102.25	102.66	102.49	102.83	102.62
Apr 2018	102.34	102.74	102.32	102.69	102.47
May 2018	102.22	102.80	102.57	102.71	102.52
Jun 2018	102.35	102.72	102.72	102.78	102.62
Jul 2018	102.58	102.56	102.50	102.74	102.59
Aug 2018	102.69	102.49	102.53	102.70	102.54
Sep 2018	102.56	102.70	102.69	102.98	102.84
Oct 2018	102.73	102.58	102.87	102.94	102.71
Nov 2018	102.84	102.42	102.87	102.98	102.72
Dec 2018	102.84	102.42	103.36	103.24	102.90
Jan 2019	103.65	103.00	103.87	103.83	103.46
Feb 2019	103.90	103.26	103.93	103.87	103.55
Mar 2019	104.06	102.73	103.70	103.66	103.32
Apr 2019	104.24	103.03	103.95	103.91	103.59
May 2019	104.35	103.11	104.07	104.04	103.74
Jun 2019	104.47	103.18	104.29	104.24	103.91
Jul 2019	104.55	103.27	104.15	104.10	103.68
Aug 2019	104.68	103.22	104.25	104.17	103.73
Sep 2019	104.95	103.65	103.93	103.78	103.40
Oct 2019	104.95	103.77	104.18	104.05	103.61
Nov 2019	105.26	103.80	104.50	104.39	103.90
Dec 2019	105.45	103.82	104.70	104.63	104.16
Jan 2020	105.10	103.72	104.87	104.73	104.36
Feb 2020	105.28	104.12	104.82	104.50	104.30
Mar 2020	105.30	104.20	104.96	104.68	104.40
Source: U.S. Bureau of Labor Statistics.