Table D-12. Mean Age and Months of Completed Service of Active Component Enlisted Members, FYs 1973-2015 |
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| FISCAL | MEAN | % 20 YEARS | % 40 YEARS | MEAN MONTHS | % 3 YEARS | % 4-10 YEARS | % 11 YEARS |
| YEAR | AGE | OR YOUNGER | OR OLDER | OF SERVICE | OR LESS | OR MORE | |
| 1973 | 25.02 | 32.9 | 3.1 | 69.82 | 60.4 | 18.1 | 21.4 |
| 1974 | 24.97 | 32.3 | 3.7 | 69.59 | 60.8 | 19.0 | 20.1 |
| 1975 | 24.92 | 32.3 | 3.7 | 68.17 | 59.9 | 20.7 | 19.2 |
| 1976 | 24.93 | 31.7 | 3.7 | 67.60 | 58.6 | 23.5 | 17.9 |
| 1977 | 24.93 | 31.6 | 3.7 | 66.52 | 58.6 | 23.5 | 17.9 |
| 1978 | 25.01 | 30.0 | 3.6 | 67.26 | 58.2 | 24.3 | 17.5 |
| 1979 | 25.07 | 29.5 | 3.5 | 67.74 | 57.5 | 24.6 | 17.8 |
| 1980 | 25.01 | 29.8 | 3.4 | 66.51 | 57.6 | 24.9 | 17.5 |
| 1981 | 25.14 | 28.4 | 3.5 | 67.07 | 56.1 | 26.7 | 17.2 |
| 1982 | 25.37 | 25.4 | 3.6 | 68.63 | 54.1 | 28.4 | 17.5 |
| 1983 | 25.56 | 23.5 | 3.7 | 69.99 | 52.6 | 29.4 | 18.0 |
| 1984 | 25.69 | 22.8 | 3.7 | 71.09 | 51.6 | 29.9 | 18.4 |
| 1985 | 25.81 | 22.1 | 3.7 | 72.29 | 50.7 | 30.2 | 19.0 |
| 1986 | 25.92 | 21.7 | 3.7 | 73.12 | 50.5 | 30.2 | 19.3 |
| 1987 | 26.09 | 21.1 | 4.1 | 74.76 | 49.5 | 30.4 | 20.0 |
| 1988 | 26.26 | 20.9 | 4.4 | 76.73 | 48.2 | 30.6 | 21.2 |
| 1989 | 26.36 | 21.0 | 4.5 | 78.01 | 47.2 | 30.7 | 22.1 |
| 1990 | 26.66 | 20.0 | 4.8 | 81.77 | 44.7 | 31.4 | 23.9 |
| 1991 | 26.95 | 17.9 | 5.0 | 84.80 | 43.1 | 31.6 | 25.3 |
| 1992 | 27.08 | 17.4 | 5.3 | 86.35 | 42.6 | 30.9 | 26.5 |
| 1993 | 27.21 | 17.3 | 5.4 | 87.70 | 41.4 | 31.3 | 27.3 |
| 1994 | 27.33 | 16.9 | 5.5 | 89.58 | 40.7 | 31.3 | 27.9 |
| 1995 | 27.36 | 15.9 | 5.7 | 89.33 | 41.3 | 30.5 | 28.2 |
| 1996 | 27.41 | 16.4 | 5.9 | 89.64 | 41.8 | 29.3 | 29.0 |
| 1997 | 27.41 | 17.6 | 6.1 | 89.20 | 42.6 | 27.9 | 29.5 |
| 1998 | 27.34 | 18.3 | 6.2 | 88.37 | 44.1 | 26.6 | 29.3 |
| 1999 | 27.26 | 19.3 | 6.3 | 87.28 | 45.8 | 25.5 | 28.7 |
| 2000 | 27.10 | 20.5 | 6.5 | 85.53 | 47.0 | 24.9 | 28.2 |
| 2001 | 27.03 | 20.4 | 6.8 | 84.38 | 47.5 | 25.5 | 27.0 |
| 2002 | 27.07 | 19.4 | 7.4 | 84.13 | 47.4 | 26.5 | 26.1 |
| 2003 | 27.04 | 18.2 | 7.3 | 83.28 | 47.0 | 28.0 | 25.1 |
| 2004 | 27.01 | 17.7 | 7.4 | 82.58 | 46.9 | 28.7 | 24.3 |
| 2005 | 27.10 | 16.6 | 7.4 | 83.15 | 46.1 | 29.9 | 24.0 |
| 2006 | 27.07 | 16.4 | 7.3 | 81.98 | 46.2 | 30.6 | 23.2 |
| 2007 | 27.09 | 16.1 | 7.1 | 80.95 | 46.1 | 31.1 | 22.8 |
| 2008 | 27.08 | 16.1 | 6.9 | 80.28 | 45.9 | 31.8 | 22.4 |
| 2009 | 27.17 | 15.1 | 6.9 | 80.44 | 46.0 | 31.6 | 22.4 |
| 2010 | 27.31 | 14.0 | 7.1 | 80.90 | 45.3 | 32.2 | 22.5 |
| 2011 | 27.37 | 13.2 | 7.1 | 81.11 | 44.9 | 32.4 | 22.7 |
| 2012 | 27.39 | 13.7 | 7.1 | 80.96 | 45.0 | 32.1 | 23.0 |
| 2013 | 27.29 | 15.0 | 6.9 | 79.99 | 46.2 | 30.8 | 23.0 |
| 2014 | 27.31 | 15.0 | 6.9 | 80.31 | 46.1 | 30.5 | 23.4 |
| 2015 | 27.21 | 15.4 | 6.6 | 79.43 | 46.6 | 29.5 | 23.9 |