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 0.00713 1990 0.03666 1991 0.07532 1992 0.13843 1993 0.32834 1994 0.69785 1995 1.15844 1996 1.88319 1997 5.60662 1998 7.3696 1999 10.50224 2000 17.50781 2001 17.99178 2002 17.33135 2003 20.47079 2004 34.88985 2005 56.6002 2006 79.65438 2007 101.07967 2008 115.17093 2009 128.63613 2010 138.46898 2011 145.76879 2012 152.8091 2013 158.34893 2014 142.4664 2015 142.43481 2016 145.33051 2017 139.8146