Year Per 100 People 1960 1.53434 1965 1.81176 1970 2.40771 1975 3.74972 1976 4.20696 1977 4.36728 1978 4.52983 1979 4.6947 1980 5.21379 1981 5.45457 1982 5.90661 1983 6.14498 1984 6.42959 1985 6.9312 1986 7.35603 1987 7.6025 1988 7.70797 1989 7.55696 1990 7.49025 1991 7.86416 1992 8.8065 1993 9.79543 1994 10.74372 1995 11.101 1996 11.7741 1997 12.13308 1998 10.99863 1999 10.6156 2000 10.35581 2001 10.84203 2002 11.18424 2003 11.42773 2004 12.71103 2005 13.62933 2006 15.48063 2007 18.76021 2008 22.80521 2009 24.02004 2010 24.40017 2011 24.88661 2012 25.58704 2013 25.64093 2014 25.40318 2015 24.97212 2016 24.26626 2017 18.54052