Why does it say some of these nations no longer exist? Czechoslovakia could have been included but instead Czechia and Slovakia were both given Czechoslovakia's finishes so Czechoslovakia must have been excluded because it no longer exists. Therefore all of the answers had to still exist, and they do.
The record of 4 golds, 4 silvers and 4 bronzes isn't West Germany's, it's West Germany plus unified Germany. West Germany only got 3 golds, 3 silvers and 1 bronze, while modern Germany has earned 1 gold, 1 silver and 2 bronzes. They also got one bronze in 1934.