59% (1996)

74% (1953)

65% (2004)

62% (2005)

61% (1999)

57% (1989)

70% (1991)

61% (1989)

43% (1989)

63% (2002)

61% (1993)

71% (1983)

57% (2004)

64% (1994)

63% (2010)

59% (1986)

55% (2020)

54% (2015)

54% (1992)

62% (2008)