year = 2004 
 pregnant = 10%  year = 2003 
 pregnant = 11%  year = 2002 
 pregnant = 11%  year = 2001 
 pregnant = 12%  year = 2000 
 pregnant = 12%  year = 1999 
 pregnant = 13%  year = 1998 
 pregnant = 13%  year = 1997 
 pregnant = 13%  year = 1996 
 pregnant = 14%  year = 1995 
 pregnant = 14%  year = 1994 
 pregnant = 15%  year = 1993 
 pregnant = 16%  year = 1992 
 pregnant = 17%  year = 1991 
 pregnant = 18%  year = 1990 
 pregnant = 18%  year = 1989 
 pregnant = 20%  year = 2004 
 pregnant = 10%  year = 2003 
 pregnant = 11%  year = 2003 
 pregnant = 11%  year = 2002 
 pregnant = 11%  year = 2002 
 pregnant = 11%  year = 2001 
 pregnant = 12%  year = 2001 
 pregnant = 12%  year = 2000 
 pregnant = 12%  year = 2000 
 pregnant = 12%  year = 1999 
 pregnant = 13%  year = 1999 
 pregnant = 13%  year = 1998 
 pregnant = 13%  year = 1998 
 pregnant = 13%  year = 1997 
 pregnant = 13%  year = 1997 
 pregnant = 13%  year = 1996 
 pregnant = 14%  year = 1996 
 pregnant = 14%  year = 1995 
 pregnant = 14%  year = 1995 
 pregnant = 14%  year = 1994 
 pregnant = 15%  year = 1994 
 pregnant = 15%  year = 1993 
 pregnant = 16%  year = 1993 
 pregnant = 16%  year = 1992 
 pregnant = 17%  year = 1992 
 pregnant = 17%  year = 1991 
 pregnant = 18%  year = 1991 
 pregnant = 18%  year = 1990 
 pregnant = 18%  year = 1990 
 pregnant = 18%  year = 1989 
 pregnant = 20%  year = 2005 
 high_school = 23%  year = 2003 
 high_school = 22%  year = 2001 
 high_school = 29%  year = 1999 
 high_school = 35%  year = 1997 
 high_school = 36%  year = 1995 
 high_school = 35%  year = 1993 
 high_school = 31%  year = 1991 
 high_school = 28%  year = 2005 
 high_school = 23%  year = 2003 
 high_school = 22%  year = 2003 
 high_school = 22%  year = 2001 
 high_school = 29%  year = 2001 
 high_school = 29%  year = 1999 
 high_school = 35%  year = 1999 
 high_school = 35%  year = 1997 
 high_school = 36%  year = 1997 
 high_school = 36%  year = 1995 
 high_school = 35%  year = 1995 
 high_school = 35%  year = 1993 
 high_school = 31%  year = 1993 
 high_school = 31%  year = 1991 
 high_school = 28%  year = 2005 
 women = 18%  year = 2004 
 women = 19%  year = 2003 
 women = 19%  year = 2002 
 women = 20%  year = 2001 
 women = 21%  year = 2000 
 women = 21%  year = 1999 
 women = 22%  year = 1998 
 women = 22%  year = 1997 
 women = 22%  year = 1995 
 women = 23%  year = 1994 
 women = 23%  year = 1993 
 women = 23%  year = 1992 
 women = 25%  year = 1991 
 women = 24%  year = 1990 
 women = 23%  year = 1988 
 women = 26%  year = 1987 
 women = 27%  year = 1985 
 women = 28%  year = 1983 
 women = 29%  year = 1979 
 women = 30%  year = 1974 
 women = 32%  year = 1965 
 women = 34%  year = 2005 
 women = 18%  year = 2004 
 women = 19%  year = 2004 
 women = 19%  year = 2003 
 women = 19%  year = 2003 
 women = 19%  year = 2002 
 women = 20%  year = 2002 
 women = 20%  year = 2001 
 women = 21%  year = 2001 
 women = 21%  year = 2000 
 women = 21%  year = 2000 
 women = 21%  year = 1999 
 women = 22%  year = 1999 
 women = 22%  year = 1998 
 women = 22%  year = 1998 
 women = 22%  year = 1997 
 women = 22%  year = 1997 
 women = 22%  year = 1995 
 women = 23%  year = 1995 
 women = 23%  year = 1994 
 women = 23%  year = 1994 
 women = 23%  year = 1993 
 women = 23%  year = 1993 
 women = 23%  year = 1992 
 women = 25%  year = 1992 
 women = 25%  year = 1991 
 women = 24%  year = 1991 
 women = 24%  year = 1990 
 women = 23%  year = 1990 
 women = 23%  year = 1988 
 women = 26%  year = 1988 
 women = 26%  year = 1987 
 women = 27%  year = 1987 
 women = 27%  year = 1985 
 women = 28%  year = 1985 
 women = 28%  year = 1983 
 women = 29%  year = 1983 
 women = 29%  year = 1979 
 women = 30%  year = 1979 
 women = 30%  year = 1974 
 women = 32%  year = 1974 
 women = 32%  year = 1965 
 women = 34%  year = 2005 
 men = 23%  year = 2004 
 men = 23%  year = 2003 
 men = 24%  year = 2002 
 men = 25%  year = 2001 
 men = 25%  year = 2000 
 men = 25%  year = 1999 
 men = 25%  year = 1998 
 men = 26%  year = 1997 
 men = 27%  year = 1995 
 men = 27%  year = 1994 
 men = 28%  year = 1993 
 men = 27%  year = 1992 
 men = 28%  year = 1991 
 men = 28%  year = 1990 
 men = 28%  year = 1988 
 men = 30%  year = 1987 
 men = 31%  year = 1985 
 men = 32%  year = 1983 
 men = 35%  year = 1979 
 men = 37%  year = 1974 
 men = 43%  year = 1965 
 men = 51%  year = 2005 
 men = 23%  year = 2004 
 men = 23%  year = 2004 
 men = 23%  year = 2003 
 men = 24%  year = 2003 
 men = 24%  year = 2002 
 men = 25%  year = 2002 
 men = 25%  year = 2001 
 men = 25%  year = 2001 
 men = 25%  year = 2000 
 men = 25%  year = 2000 
 men = 25%  year = 1999 
 men = 25%  year = 1999 
 men = 25%  year = 1998 
 men = 26%  year = 1998 
 men = 26%  year = 1997 
 men = 27%  year = 1997 
 men = 27%  year = 1995 
 men = 27%  year = 1995 
 men = 27%  year = 1994 
 men = 28%  year = 1994 
 men = 28%  year = 1993 
 men = 27%  year = 1993 
 men = 27%  year = 1992 
 men = 28%  year = 1992 
 men = 28%  year = 1991 
 men = 28%  year = 1991 
 men = 28%  year = 1990 
 men = 28%  year = 1990 
 men = 28%  year = 1988 
 men = 30%  year = 1988 
 men = 30%  year = 1987 
 men = 31%  year = 1987 
 men = 31%  year = 1985 
 men = 32%  year = 1985 
 men = 32%  year = 1983 
 men = 35%  year = 1983 
 men = 35%  year = 1979 
 men = 37%  year = 1979 
 men = 37%  year = 1974 
 men = 43%  year = 1974 
 men = 43%  year = 1965 
 men = 51%
The SGPlot Procedure