56% (2006)

60% (2010)

77% (1999)

62% (2004)

69% (1993)

65% (1990)

69% (1979)

65% (1983)

59% (1991)

70% (1978)

60% (1978)

67% (2005)

60% (1986)

73% (2009)

54% (1986)

70% (1977)

63% (2016)

67% (1987)

56% (2022)

57% (2020)