Year	Grams per day
1961	129.54
1962	134.07
1963	137.55
1964	131.25
1965	138.98
1966	139.07
1967	134.52
1968	134.1
1969	134.55
1970	136.29
1971	136.87
1972	137.38
1973	135.49
1974	134.53
1975	128.49
1976	127.7
1977	130.7
1978	119.3
1979	118.86
1980	124.74
1981	111.91
1982	118.63
1983	119.33
1984	101.16
1985	113.6
1986	115.03
1987	116.36
1988	136.89
1989	144.88
1990	154.88
1991	165.55
1992	155.99
1993	149.95
1994	138.19
1995	133.02
1996	127.96
1997	128.5
1998	127.55
1999	126.93
2000	125.85
2001	125.73
2002	126.27
2003	131.23
2004	130.3
2005	127.86
2006	127.09
2007	128.36
2008	125.98
2009	129.2
2010	128.9
2011	124.6
2012	124.26
2013	122.04