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 1989 1.23063 1990 1.82505 1991 2.34864 1992 3.13893 1993 5.48087 1994 8.21885 1995 10.08677 1996 12.66948 1997 16.24433 1998 19.795 1999 20.07308 2000 20.30362 2001 20.7282 2002 46.43244 2003 61.66179 2004 75.30931 2005 80.9458 2006 92.37201 2007 106.33052 2008 122.24371 2009 132.18668 2010 137.90731 2012 144.0352 2013 150.22861 2014 95.36565 2015 61.28736 2016 103.60815 2017 105.94631