Marshall Plan as part of the GDP

does anyone know how much of the U.S. GDP the Marshal Plan for European Recovery was? I know it cost about 13 billion back in 47-51, but I don’t know how much of the GDP that was then.

You can generate tables for historic GDP at the Bureau of Economic Analysis site,

1947 244.2
1948 269.2
1949 267.3
1950 293.8
1951 339.3

About 1% of GDP per year, very roughly.