70% (2012)

78% (1995)

66% (2019)

55% (1981)

64% (2010)

64% (2016)

66% (2023)

68% (2004)

67% (2002)

61% (1995)

65% (2010)

61% (2018)

65% (2007)

55% (2019)

59% (2001)

62% (2004)

63% (2006)

60% (2009)

56% (2010)

0% (1990)