64% (1991)

57% (2016)

63% (2016)

74% (2012)

73% (1988)

64% (1985)

58% (2003)

63% (1997)

54% (2013)

70% (1997)

57% (2006)

45% (2015)

56% (2003)

64% (2007)

60% (1991)

42% (1994)

52% (2013)

53% (2017)

74% (1987)

49% (2016)