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 1991 0.02605 1992 0.17452 1993 0.32488 1994 0.8184 1995 1.3709 1996 2.07166 1997 4.70891 1998 8.12917 1999 31.75604 2000 61.13159 2001 73.93496 2002 83.85375 2003 87.43975 2004 92.82962 2005 88.12547 2006 90.80648 2007 95.77227 2008 101.49965 2009 103.19398 2010 103.75431 2011 105.60582 2012 108.77358 2013 110.52476 2014 112.33994 2015 113.45381 2016 114.81788 2017 117.46155