US Employment-To-Population Ratio - All Persons - 15 To 64

1970	64.0%
1980	67.2%
1990	72.2%
2000	74.1%
2001	73.1%
2002	71.9%
2003	71.2%
2004	71.2%
2005	71.5%
2006	72.0%
2007	71.8%
2008	70.9%
2009	67.6%
2010	66.7%
2011	66.6%
2012	67.1%

Source: The Organization for Economic Co-operation and Development