t of disposable income $1,500 • 7% 5% $1,000 • 3% 1% $500 - -1% -3% 1929 Sou 1936 1943 1950 1957 1964 1971 1978 1985 1992 1999 2006 ce: "Department of Commerce Historical Statistics. Colonial Times to $0 1999 2001 2003 2005 2007 2009 2011 Source: Michael Combaters'. 1970", Bureau of Economic Analysis since 1959. For o