57% (2016)

47% (2015)

51% (2006)

64% (2008)

60% (2023)

54% (2008)

69% (2019)

63% (2013)

46% (1974)

68% (2012)

42% (2003)

58% (2007)

62% (2005)

53% (1980)

54% (2006)

65% (1997)

53% (1992)

55% (2005)

46% (2023)

50% (2012)