Year	Grams per day
1961	107.97
1962	107.55
1963	117.72
1964	118.96
1965	114.56
1966	109.25
1967	102.45
1968	104.82
1969	105.17
1970	108.33
1971	110.2
1972	111.79
1973	117.66
1974	123.25
1975	127.32
1976	126.96
1977	113.97
1978	110.16
1979	111.12
1980	111.44
1981	111.61
1982	108.47
1983	106.49
1984	107.95
1985	110.02
1986	107.98
1987	106.22
1988	105.57
1989	104.23
1990	100.46
1991	97.91
1992	95.41
1993	93.52
1994	92.96
1995	90.93
1996	90.17
1997	90.18
1998	90.38
1999	89.33
2000	87.96
2001	85.98
2002	84.53
2003	87.25
2004	84.26
2005	84.16
2006	85.8
2007	84.05
2008	82.3
2009	83.16
2010	96.45
2011	95.76
2012	98.69
2013	101.2