50% (1986)

58% (2010)

56% (1978)

46% (1996)

57% (1974)

52% (2015)

62% (2001)

58% (1959)

63% (1959)

51% (2006)

63% (1967)

56% (2010)

52% (2021)

61% (2016)

77% (2001)

44% (2002)

58% (1982)

56% (1959)

65% (1963)

69% (1979)