74% (1978)

67% (1960)

54% (1967)

57% (1994)

71% (1997)

46% (2004)

63% (2019)

60% (2019)

65% (1964)

57% (2005)

74% (2012)

64% (2008)

35% (2002)

53% (1979)

65% (1999)

44% (1994)

62% (1967)

65% (1962)

54% (1991)

56% (2019)