The following image is frequently circulating when WWII is discussed:
Poll in France: "In your opinion, which country contributed most to the defeat of Germany in 1945?" (Source: polls IFO 1945, 1994, 2004, 2015)
According to the image, 57% of of people in France believed that the USSR contributed the most to the defeat of Nazi Germany in 1945, while only 23% shared the same view in 2015. Are there actual statistics to back up this claim?