71% (2022)

68% (2017)

58% (2023)

77% (1997)

69% (2014)

78% (1994)

68% (2011)

66% (2012)

0% (1970)

71% (2007)

20% (2024)

70% (2022)

64% (2009)

65% (2008)

54% (2005)

46% (2005)

40% (2018)

67% (2003)

69% (2014)