Age 0: 1970 Age 1: 1971 Age 2: 1972 Age 3: 1973 Age 4: 1974 Age 5: 1975 Age 6: 1976 Age 7: 1977 Age 8: 1978 Age 9: 1979 - Early Age 9: 1979 - Mid Age 9: 1979 - Late Age 10: 1980 - Early Age 10: 1980 - Late Age 11: 1981 - Early Age 11: 1981 - Mid Age 11: 1981 - Late Age 12: 1982 Age 13: 1983 Age 14: 1984 Age 15: 1985 - Early Age 15: 1985 - Mid Age 15: 1985 - Late Age 16: 1986 Age 17: 1987 - Early Age 17: 1987 - Late Age 18: 1988 - Early Age 18: 1988 - Mid Age 18: 1988 - Late Age 19: 1989 - Early Age 19: 1989 - Mid Age 19: 1989 - Late Age 20: 1990 - Early Age 20: 1990 - Early/Mid Age 20: 1990 - Mid/Late Age 20: 1990 - Late Age 21: 1991 Age 22: 1992 Age 23: 1993 - Early Age 23: 1993 - Early/Mid Age 23: 1993 - Mid/Late Age 23: 1993 - Late Age 24: 1994 - Early Age 24: 1994 - Early/Mid Age 24: 1994 - Mid/Late Age 24: 1994 - Late Age 25: 1995 - Early Age 25: 1995 - Late Age 26: 1996 - Early Age 26: 1996 - Mid Age 26: 1996 - Late Age 27: 1997 - Early Age 27: 1997 - Mid Age 27: 1997 - Late Age 28: 1998 - Early Age 28: 1998 - Early/Mid Age 28: 1998 - Mid/Late Age 28: 1998 - Late Age 29: 1999 - Early Age 29: 1999 - Mid Age 29: 1999 - Late Age 30: 2000 - Early Age 30: 2000 - Mid Age 30: 2000 - Late