Union Membership, Coverage, Density, and Employment:      
Private Sector Construction Workers          
Year Sample Size Wage At Cap Union Wage Nonunion Wage Unadjusted Union Wage Prem. Adjusted Union Wage Prem.
               
1973 2,211 $5.24 0.1% $6.78 $4.22 60.5% 49.7%
1974 1,957 $5.52 0.2% $7.17 $4.50 59.4% 48.9%
1975 1,734 $5.86 0.4% $7.67 $4.77 60.8% 56.4%
1976 1,791 $6.34 0.4% $8.39 $5.20 61.4% 54.6%
1977 2,360 $6.69 0.4% $9.06 $5.42 67.1% 54.3%
1978 2,341 $6.93 0.4% $9.45 $5.73 65.0% 51.1%
1979 2,187 $7.82 0.4% $10.06 $6.53 54.0% 43.3%
1980 2,658 $8.38 0.6% $10.67 $7.21 47.9% 44.5%
1981 604 $8.79 0.9% $11.08 $7.59 46.0% 42.0%
1983 6,885 $9.45 1.4% $13.11 $8.07 62.4% 55.6%
1984 7,153 $9.58 1.8% $13.71 $8.23 66.5% 58.6%
1985 7,409 $9.90 2.0% $14.29 $8.62 65.8% 57.0%
1986 7,768 $10.22 2.0% $14.72 $8.89 65.6% 50.8%
1987 7,559 $10.52 2.5% $14.93 $9.37 59.3% 50.8%
1988 7,205 $11.03 3.3% $15.34 $9.81 56.4% 45.9%
1989 7,259 $11.51 0.4% $15.70 $10.18 54.2% 46.9%
1990 7,369 $11.94 0.5% $16.13 $10.78 49.6% 44.4%
1991 6,533 $12.10 0.4% $16.53 $10.86 52.2% 45.9%
1992 6,197 $12.36 0.3% $17.16 $11.08 54.9% 43.8%
1993 6,186 $12.54 0.3% $16.89 $11.31 49.3% 42.5%
1994 7,355 $12.82 0.5% $17.63 $11.70 50.6% 46.6%
1995 7,590 $13.16 0.5% $18.32 $12.04 52.1% 50.6%
1996 5,411 $13.75 0.6% $18.40 $12.55 46.6% 45.0%
1997 5,618 $14.08 0.5% $19.02 $12.81 48.4% 47.6%
1998 5,677 $14.72 0.2% $19.62 $13.66 43.6% 43.1%
1999 5,558 $15.30 0.2% $19.47 $13.95 39.5% 44.6%
2000 5,774 $15.81 0.3% $20.72 $14.76 40.4% 40.8%
2001 6,302 $16.83 0.4% $21.46 $15.51 38.4% 41.9%
2002 6,733 $17.05 0.6% $21.22 $15.97 32.8% 44.6%
2003 6,701 $17.35 0.6% $22.65 $16.33 38.7% 44.1%
2004 6,924 $17.40 0.6% $23.22 $16.49 40.8% 44.4%
2005 7,349 $17.59 0.8% $24.01 $16.84 42.6% 40.6%
2006 7,501 $18.39 0.8% $25.10 $17.59 42.7% 41.7%
2007 7,520 $18.98 1.0% $25.63 $18.22 40.7% 43.2%
2008 6,676 $20.56 1.2% $27.10 $19.72 37.4% 42.2%
2009 5,786 $20.98 1.1% $27.76 $20.27 36.9% 44.5%
2010 5,126 $20.94 1.4% $27.89 $20.30 37.4% 45.4%
2011 5,085 $21.33 1.5% $27.74 $20.76 33.6% 48.7%
2012 5,010 $21.77 1.5% $28.21 $21.22 32.9% 46.0%
2013 5,015 $21.87 1.6% $28.37 $21.20 33.8% 44.7%
2014 5,206 $22.30 1.8% $29.31 $21.29 37.7% 47.9%
2015 4,955 $23.02 2.0% $29.09 $22.18 31.2% 40.2%
2016 5,216 $23.98 2.3% $30.98 $23.10 34.1% 49.7%
2017 5,308 $24.83 2.4% $31.06 $23.89 30.0% 46.0%
2018 5,390 $26.15 3.2% $33.42 $25.06 33.4% 47.4%
2019 5,213 $26.97 3.5% $34.20 $25.66 33.3% 44.8%
2020 4,631 $28.87 3.8% $33.37 $28.05 19.0% 34.4%
2021 4,566 $29.71 4.1% $35.77 $28.32 26.3% 39.8%
2022 4,654 $31.11 4.6% $37.23 $30.34 22.7% 38.1%
2023 4,651 $32.43 3.0% $38.77 $31.40 23.5% 35.8%
2024 4,743 $33.56 0.7% $40.64 $32.37 25.6% 38.9%
Beginning in April 2023, the CPS gradually phased in dynamic topcoding that assigned anyone  
in the top 3% of the weekly earnings distribution a value that matches the average within the  
top 3 percent.  The estimate of the percent at the cap excludes those who are assigned a  
dynamic top code.   By the end of 2024,  no earnings are capped at $2885.    
Copyright 2025 by Barry T. Hirsch, David A. Macpherson, and William E. Even.