I wonder how many of those polled were Austrian Jews....
In 1934 there were 176,034 Jews in Austria, or about 9% of the population. In 1951, there were 9,000 or about 0.6% of the population.
http://en.wikipedia.org/wiki/History_of_the_Jews_in_Austria
The greatest achievement of Austria in the 20th Century was convincing the world that Hitler was a German and Bach was an Austrian.