Year	Grams per day
1961	108.99
1962	109.91
1963	108.49
1964	111.09
1965	110.83
1966	104.23
1967	103.58
1968	105.82
1969	105.86
1970	108.61
1971	110.09
1972	119.59
1973	131.58
1974	122.51
1975	112.08
1976	135.14
1977	129.15
1978	128.99
1979	120.05
1980	120.38
1981	133.65
1982	133.5
1983	150.06
1984	136.13
1985	115.77
1986	128.88
1987	167.81
1988	150.9
1989	130.21
1990	115.54
1991	89.55
1992	72.8
1993	86.24
1994	85.43
1995	105.11
1996	103.84
1997	100.88
1998	95.51
1999	94.64
2000	93.53
2001	107.66
2002	101.41
2003	104.88
2004	107.7
2005	100.48
2006	99.97
2007	113.04
2008	106.69
2009	102.43
2010	110.25
2011	117.51
2012	118.64
2013	118.42