54% (2007)

59% (2009)

63% (1993)

68% (2012)

65% (2006)

72% (2011)

56% (2017)

64% (2011)

57% (2016)

71% (2017)

67% (2015)

59% (2011)

55% (2009)

65% (1998)

58% (2017)

60% (1981)

60% (2020)

72% (2011)

47% (2010)

50% (2021)