Sorry for the confusion. I was referring to the percentage of average daily Firefox usage by country. e.g. 27% of Firefox usage originates in the US, 11% from Germany, etc.
The numbers you are quoting are the percentage of a sampling of all internet users in Germany who use Firefox v.s. IE.
According to StatCounter Global Stats, for Germany in February 2009 Firefox usage was at 58% and IE usage was at 34%.
http://gs.statcounter.com/#browser-DE-monthly-200902-200902-...