Year	Grams per day
1961	141.65
1962	122.5
1963	136.02
1964	132.09
1965	141.41
1966	138.1
1967	140.81
1968	133.57
1969	133.6
1970	135.06
1971	133.88
1972	121.88
1973	139.13
1974	114.53
1975	126.03
1976	126.34
1977	130.7
1978	113.79
1979	117.65
1980	118.49
1981	117.19
1982	127.89
1983	116.55
1984	116.73
1985	109.35
1986	111.94
1987	112.96
1988	114.01
1989	114.87
1990	113.9
1991	112.39
1992	110.1
1993	99.19
1994	108.18
1995	103.85
1996	108.34
1997	107.61
1998	103.39
1999	109.17
2000	102.35
2001	110.7
2002	112.66
2003	110.54
2004	113.72
2005	103.06
2006	90.45
2007	99.01
2008	99.89
2009	106.21
2010	100.24
2011	109.86
2012	105.87
2013	113.09