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 1992 0 1993 0 1994 0 1995 0.31225 1996 0.31338 1997 0.12406 1998 0.13383 1999 0.14346 2000 0.18352 2001 0.23932 2002 3.38159 2003 11.22368 2004 16.33369 2005 29.56424 2006 29.55187 2007 45.45366 2008 48.99956 2009 51.15633 2010 52.14285 2011 52.59283 2012 53.35823 2013 54.59137 2014 64.28315 2015 69.09575 2016 74.6812