Chart 2d. Seasonal adjustment for Employment Cost Index (ECI) wages and salaries and Current Employment Statistics (CES) average hourly earnings, private industry workers, December, 2014–23
Year	ECI seasonal adjustment	CES seasonal adjustment
2014	0.11	0.16
2015	0.11	0.16
2016	0.15	0.19
2017	0.14	0.11
2018	0.16	-0.51
2019	0.15	-0.49
2020	0.14	0.20
2021	0.12	0.26
2022	0.11	0.24
2023	0.12	0.23
Note: The CES estimate for December 2023 is based on preliminary data. Source: U.S. Bureau of Labor Statistics.