List of best-selling singles by year (Germany)

Columns: # | Artist | Artist 's nationality | Title
15 | Flo Rida | United States | Whistle | 16 | Marteria , Yasha & Miss Platnum | Germany Germany / Romania | Lila Wolken | 17 | Adele | United Kingdom | Skyfall | 18 | Tacabro | Italy | Tacata ' | 19 | Cro | Germany | Easy | 20 | Linkin Park | United States | Burn It Down

Example questions:
Diamonds is a best-selling single in 2010 performed by an artist born in what year ? | I Follow Rivers is a best-selling single in 2010 performed by an artist born in what year ? | Gangnam Style is a best-selling single in 2010 performed by an artist born in what year ? | Call Me Maybe is a best-selling single in 2010 performed by an artist born in what year ?

Answers:
1988 | 1986 | 1977 | 1985