76% (1997)

86% (2015)

72% (2006)

70% (1995)

62% (2005)

65% (1975)

46% (2004)

66% (2012)

69% (2011)

67% (2001)

74% (2017)

59% (2011)

63% (2017)

63% (2011)

71% (1981)

65% (2023)

62% (2022)

51% (2008)

64% (1993)

66% (1996)