Year	Grams per day
1961	95.19
1962	89.82
1963	89.81
1964	93.07
1965	93.92
1966	113.95
1967	114.99
1968	117.2
1969	119.76
1970	121.79
1971	119.76
1972	115.45
1973	88.96
1974	99.79
1975	107.58
1976	110.67
1977	96.24
1978	102.5
1979	42.5
1980	78.45
1981	82.39
1982	96.54
1983	99.72
1984	105.54
1985	109.67
1986	115.71
1987	124.13
1988	125.73
1989	127.62
1990	131.73
1991	128.62
1992	127.32
1993	131.63
1994	134.01
1995	125.05
1996	117.87
1997	121.99
1998	121.51
1999	116.73
2000	118.19
2001	116.06
2002	116.02
2003	117.88
2004	124.05
2005	120.99
2006	125.45
2007	126.36
2008	125.72
2009	122.6
2010	121.73
2011	117.12
2012	115.59
2013	113.37