57% (1981)

73% (2011)

70% (2015)

70% (2023)

69% (2024)

73% (1983)

62% (2009)

57% (2003)

46% (1993)

0% (2023)

71% (2020)

57% (2022)

76% (2009)

75% (2006)

70% (2023)

63% (2008)

68% (2023)

57% (2008)

65% (1997)

73% (2001)