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 0.04041 1991 0.03895 1992 0.03684 1993 0.03475 1994 0.03289 1995 0.25892 1996 0.51126 1997 0.93201 1998 1.6727 1999 2.3613 2000 7.62177 2001 16.66757 2002 23.06572 2003 24.5575 2004 29.33939 2005 54.91143 2006 73.18723 2007 77.04657 2008 81.87534 2009 88.17276 2010 92.16988 2011 98.78043 2012 112.40751 2013 122.58894 2014 125.91689 2015 150.64432 2016 103.83515