Year	Grams per day
1961	97.24
1962	98.35
1963	97.64
1964	93.34
1965	93.83
1966	83.34
1967	96.03
1968	107.59
1969	113.23
1970	115.78
1971	117.7
1972	126.16
1973	126.94
1974	130.2
1975	116.23
1976	104.76
1977	117.43
1978	109.24
1979	113.63
1980	100.82
1981	103.81
1982	103.05
1983	108.16
1984	106.88
1985	102.88
1986	106.34
1987	112.35
1988	105.13
1989	97.23
1990	97.49
1991	97.71
1992	90.31
1993	100.88
1994	96.65
1995	104.4
1996	103.54
1997	98.61
1998	96.94
1999	92.61
2000	100.99
2001	102.27
2002	102.77
2003	105.31
2004	104.79
2005	109.96
2006	102.63
2007	88.92
2008	89.71
2009	94.11
2010	107.07
2011	95.27
2012	98.77
2013	101.23