53% (2008)

54% (2010)

56% (2003)

68% (1986)

59% (1987)

65% (2005)

63% (2006)

56% (2001)

66% (2012)

53% (2012)

72% (2010)

56% (2018)

60% (2017)

61% (2012)

76% (2005)

55% (2020)

54% (2011)

71% (1984)

61% (2021)

51% (2021)