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 0.00952 1989 0.01901 1990 0.03737 1991 0.08164 1992 0.37771 1993 0.85875 1994 1.46826 1995 1.81985 1996 2.5682 1997 4.63822 1998 8.52696 1999 15.7509 2000 22.24394 2001 25.94381 2002 25.74667 2003 27.11837 2004 31.98582 2005 46.6534 2006 68.97959 2007 86.01821 2008 97.41549 2009 98.37777 2010 96.04554 2011 97.68766 2012 102.26137 2013 101.90723 2014 99.31566 2015 93.38274 2016 87.43264 2017 76.59767