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 0.00502 1991 0.04242 1992 0.13353 1993 0.2423 1994 0.46511 1995 0.72969 1996 1.41955 1997 2.65687 1998 4.06287 1999 6.61964 2000 23.32844 2001 39.81325 2002 52.60908 2003 57.81115 2004 64.67956 2005 83.36346 2006 100.56057 2007 115.41208 2008 104.64911 2009 107.69239 2010 113.86732 2011 118.58799 2012 115.70629 2013 110.36066 2014 104.78726 2015 104.24087 2016 104.77259 2017 103.01304