Year	Grams per day
1961	124.46
1962	127.32
1963	125.02
1964	123.29
1965	132.96
1966	130.83
1967	133.37
1968	136.63
1969	119.81
1970	122.43
1971	121.95
1972	121.3
1973	114.08
1974	94.71
1975	78.84
1976	110.31
1977	112.92
1978	118.32
1979	121.37
1980	115.86
1981	114.73
1982	107.51
1983	106.7
1984	112.74
1985	116
1986	113.15
1987	114.05
1988	102.07
1989	111.32
1990	113.08
1991	115.02
1992	118.42
1993	119.62
1994	121.1
1995	121.17
1996	119.88
1997	125.61
1998	124.84
1999	126.82
2000	125.68
2001	122.5
2002	121.38
2003	117.47
2004	111.69
2005	103.55
2006	100.59
2007	102.72
2008	105.18
2009	103.01
2010	104.73
2011	110.3
2012	114.32
2013	120.36