Year	Grams per day
1961	77.36
1962	82.39
1963	76.75
1964	75.22
1965	70.52
1966	72.24
1967	71.31
1968	70.45
1969	71.13
1970	73.96
1971	74.48
1972	75.84
1973	76.68
1974	78.87
1975	81.56
1976	87.51
1977	90.18
1978	95.99
1979	97.34
1980	95.78
1981	91.82
1982	89.55
1983	92.81
1984	87.31
1985	84.78
1986	85.58
1987	85.22
1988	90.32
1989	84.26
1990	85.32
1991	84.51
1992	91.84
1993	96.92
1994	96.91
1995	94.93
1996	91.43
1997	98.15
1998	99.52
1999	91.24
2000	102.97
2001	99.45
2002	101.74
2003	99.72
2004	102.16
2005	102.74
2006	99.27
2007	107.71
2008	112.3
2009	112.84
2010	104.1
2011	108.19
2012	106.4
2013	108.84