Year Per 100 People 1960 0 1965 0 1970 0 1975 0 1976 0 1977 0 1978 0 1979 0 1980 0 1981 0 1982 0 1983 0 1984 0 1985 0 1986 0 1987 0.08382 1988 0.46815 1989 1.09886 1990 1.87339 1991 2.58946 1992 3.15553 1993 3.73938 1994 4.77162 1995 6.37124 1996 9.38531 1997 14.72664 1998 23.87259 1999 42.83147 2000 64.71825 2001 73.24756 2002 79.18789 2003 84.87508 2004 85.40291 2005 92.22603 2006 99.39517 2007 108.57798 2008 116.35593 2009 120.49097 2010 123.13831 2011 127.13872 2012 131.49289 2013 135.85491 2014 135.48606 2015 135.13849 2016 133.80682 2017 133.22314