Year	Grams per day
2000	150.7
2001	149.34
2002	148.3
2003	149.48
2004	146.48
2005	145.77
2006	139.67
2007	138
2008	144.19
2009	149
2010	156.33
2011	138.43
2012	152.54
2013	143.53