Table:
text: Swedish motorcycle Grand Prix
Winners of the Swedish motorcycle Grand Prix
Winners of the Swedish motorcycle Grand Prix
Year_ Track _125_cc _250_cc Report
1976 Anderstorp Pier Paolo Bianchi Takazumi Katayama Report
1975 Anderstorp Paolo Pileri Walter Villa Report
1974 Anderstorp Kent Andersson Takazumi Katayama Report
1973 Anderstorp Börje Jansson Dieter Braun Report
1972 Anderstorp Angel Nieto Rod Gould Report
1971 Anderstorp Barry Sheene Rod Gould Report
1961 Kristianstad Luigi Taveri Mike Hailwood Report
1959 Kristianstad Tarquinio Provini Gary Hocking Report
1958 Hedemora Alberto Gandossi Horst Fügner Report

Question: In what year did Barry Sheene win the Swedish 125cc motorcycle Grand Prix?