Year	Grams per day
1961	134.36
1962	137.2
1963	139.03
1964	139.23
1965	141.5
1966	142.23
1967	142.88
1968	143.6
1969	144.29
1970	143.32
1971	142.38
1972	143.17
1973	138.76
1974	153.86
1975	145.27
1976	153
1977	147.92
1978	156.08
1979	145.79
1980	147.98
1981	153.21
1982	179.36
1983	186.64
1984	190.7
1985	179.28
1986	181.45
1987	188.83
1988	166.21
1989	168.45
1990	162.83
1991	161.96
1992	160.78
1993	160.24
1994	150.54
1995	159.99
1996	166.96
1997	182.54
1998	176.71
1999	186.75
2000	179.57
2001	170.39
2002	155.96
2003	148.37
2004	169.64
2005	148.33
2006	139.42
2007	137.42
2008	122.49
2009	161.74
2010	165.41
2011	157.66
2012	149.88
2013	145.97