66% (2021)

69% (2013)

69% (2010)

68% (2003)

60% (2008)

58% (2004)

63% (2020)

70% (2016)

54% (2011)

54% (2006)

61% (2018)

61% (2017)

65% (1975)

44% (2009)

60% (2024)

60% (2012)

60% (1981)

55% (2011)

69% (1997)

70% (2009)