Pre-Presidential Election Years

The last time a Pre-Presidential Election ended down was 1939. What will 2011 hold?

C fund (S&P 500) returns

1939 -5.5%
1943 19.4%
1947 -
1951 16.5%
1955 26.4%
1959 8.5%
1963 18.9%
1967 20.1%
1971 10.8%
1975 31.5%
1979 12.3%
1983 17.3%
1987 2.0%
1991 26.3%
1995 34.1%
1999 19.5%
2003 26.4%
2007 3.5%