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 1991 0 1992 0.03384 1993 0.07464 1994 0.16469 1995 0.33202 1996 0.67465 1997 1.69145 1998 4.54914 1999 8.38207 2000 15.4791 2001 21.2702 2002 30.26204 2003 31.56849 2004 30.66493 2005 32.55978 2006 54.95417 2007 78.68314 2008 95.76066 2009 91.69041 2010 95.34582 2011 103.73813 2012 106.49741 2013 109.08724 2014 111.48696 2015 111.64111 2016 111.36254 2017 109.64542