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 0.00583 1991 0.01026 1992 0.0149 1993 0.08192 1994 0.16124 1995 0.28123 1996 0.38661 1997 0.62181 1998 0.93805 1999 1.37476 2000 2.29051 2001 3.53016 2002 4.88687 2003 7.25153 2004 11.41388 2005 17.21819 2006 27.51629 2007 40.29869 2008 55.56276 2009 81.22215 2010 85.9442 2011 90.17687 2012 94.65491 2013 98.96682 2014 107.2705 2015 115.37895 2016 124.03399 2017 135.07302