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 0.08855 1986 0.22979 1987 0.51138 1988 0.98483 1989 1.70981 1990 1.94812 1991 2.19744 1992 2.62112 1993 3.93405 1994 6.81534 1995 9.89298 1996 12.46348 1997 15.15253 1998 25.41296 1999 46.27492 2000 73.70886 2001 78.2477 2002 82.9467 2003 91.06415 2004 99.67235 2005 108.60041 2006 115.25444 2007 120.22571 2008 120.72406 2009 121.93539 2010 121.20305 2011 120.92152 2012 121.91277 2013 121.70889 2014 120.67962 2015 121.18399 2016 119.97735 2017 119.63095