List of French Open men's doubles champions

Columns: Country | Amateur Era | Open Era | All-time | First title | Last title
Germany ( GER ) | 2 | 0 | 2 | 1937 | 1937 | Czechoslovakia ( TCH ) | 1 | 1 | 2 | 1948 | 1986 | Italy ( ITA ) | 2 | 0 | 2 | 1959 | 1959 | Romania ( ROU ) | 0 | 2 | 2 | 1970 | 1970 | Mexico ( MEX ) | 0 | 2 | 2 | 1975 | 1977 | Belgium ( BEL ) | 0 | 2 | 2 | 2004 | 2004

Example questions:
What is the French Open open era for the country that has the fourth most amount of languages in the world ? | What year was the last French Open title for the country that is the most populous nation in Europe ? | What year was the first French Open title won by the country that the third most populated country in the world ? | What is the French Open amatur era of the country that gained its independence from The Holy Roman Empire in 1648 ? | What year was the last French Open title for the country whose three largest metropolitan areas are Toronto , Montreal , and Vancouver ?

Answers:
2 | 2002 | 1926 | 0 | 2012