Year per Person 1965 2.14042 1966 2.25047 1967 2.37384 1968 2.44258 1969 2.46157 1970 2.54542 1971 2.48693 1972 2.47427 1973 2.39073 1974 2.26229 1975 2.14306 1976 2.07007 1977 2.07233 1978 2.14775 1979 2.09574 1980 2.08994 1981 2.06434 1982 2.0532 1983 2.04346 1984 2.07961 1985 2.07085 1986 1.98409 1987 1.90405 1988 1.85299 1989 1.71534 1990 1.64978 1991 1.6586 1992 1.60428 1993 1.52684 1994 1.47483 1995 1.44377 1996 1.42134 1997 1.39617 1998 1.33602 1999 1.26453 2000 1.23259 2001 1.2095 2002 1.18936 2003 1.14661 2004 1.11223 2005 1.04683 2006 1.02244 2007 1.01505 2008 0.99633 2009 1.05333 2010 1.07792 2011 1.10892 2012 1.25482 2013 1.41638 2014 1.64532 2015 1.76645 2016 1.68555