Year	Grams per day
1961	121.62
1962	124.21
1963	103.45
1964	127.52
1965	120.45
1966	117.37
1967	122.5
1968	126.61
1969	119.4
1970	120.15
1971	127.93
1972	162
1973	123.2
1974	129.3
1975	94.12
1976	105.28
1977	95.84
1978	99.87
1979	95.84
1980	102.1
1981	118.11
1982	107.56
1983	106.41
1984	106.68
1985	113.51
1986	106.52
1987	105.78
1988	93.85
1989	98.69
1990	103.46
1991	100.12
1992	95.79
1993	97.03
1994	138.9
1995	150.39
1996	152.32
1997	134.32
1998	144.85
1999	145
2000	136
2001	130.13
2002	129.35
2003	127.02
2004	130.45
2005	124.88
2006	129.4
2007	123.38
2008	127.17
2009	129.14
2010	127.92
2011	130.25
2012	123.7
2013	120.21