77% (1993)

72% (2001)

82% (2004)

60% (1999)

50% (1971)

76% (1973)

68% (2021)

70% (2023)

68% (2017)

0% (2010)

71% (2015)

65% (1977)

63% (2018)

57% (2008)

74% (2000)

58% (2021)

78% (2004)

76% (2008)

60% (1992)

66% (2007)