75% (1971)

63% (1996)

57% (1990)

52% (1991)

60% (1994)

69% (1978)

59% (1978)

67% (1990)

73% (2016)

68% (2012)

60% (1994)

71% (2007)

41% (1979)

69% (2020)

64% (1979)

57% (1994)

70% (2003)

46% (1974)

59% (2009)

64% (2013)