71% (2000)

70% (1961)

66% (2021)

62% (2019)

56% (2009)

56% (2013)

75% (1995)

65% (2000)

55% (2011)

70% (2003)

55% (2023)

64% (1997)

58% (2023)

61% (2007)

58% (2002)

56% (1967)

48% (1993)

63% (2004)

65% (2003)

67% (2018)