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 1988 0 1989 0 1990 0.00756 1991 0.02558 1992 0.09478 1993 0.15657 1994 0.22101 1995 0.30594 1996 0.82227 1997 1.69899 1998 2.94702 1999 3.96425 2000 4.91554 2001 6.8286 2002 8.67224 2003 10.87821 2004 15.00579 2005 20.22192 2006 32.62976 2007 54.49191 2008 73.15079 2009 85.16923 2010 99.11997 2011 109.07738 2012 97.44391 2013 97.47292 2014 102.92732 2015 109.11231 2016 116.23764 2017 120.98492