55% (2014)

51% (1990)

66% (2015)

73% (2018)

63% (1993)

55% (2015)

68% (1992)

53% (2003)

64% (1996)

60% (2005)

43% (1998)

69% (2005)

67% (2012)

74% (1964)

72% (2008)

79% (2009)

62% (1999)

45% (2006)

65% (2014)

59% (1992)