Year per Person 1970 0.12402 1971 0.28598 1972 1.09509 1973 1.67763 1974 1.44567 1975 1.57704 1976 1.56137 1977 1.58635 1978 1.54708 1979 1.97192 1980 1.44527 1981 0.84683 1982 0.86627 1983 0.92373 1984 1.10497 1985 1.20812 1986 1.26171 1987 1.09497 1988 1.17287 1989 1.41375 1990 1.2577 1991 1.29525 1992 1.31004 1993 1.20371 1994 1.18455 1995 1.15301 1996 1.14737 1997 1.1555 1998 1.10172 1999 0.88734 2000 0.9881 2001 1.02232 2002 0.96065 2003 0.88142 2004 1.27157 2005 1.75566 2006 2.01924 2007 2.30338 2008 2.36409 2009 2.33783 2010 2.45302 2011 1.14144 2012 1.60781 2013 1.68755 2014 1.63924 2015 1.7033 2016 1.44294