58% (1958)

62% (1971)

60% (1966)

55% (2005)

73% (1961)

35% (1964)

42% (1988)

63% (1961)

0% (1986)

54% (2005)

56% (1959)

70% (2010)

20% (1975)

52% (1969)

54% (2017)

52% (2006)

0% (1970)

65% (1965)

0% (2015)

51% (2010)