49% (2009)

59% (2014)

69% (2012)

65% (2015)

64% (1996)

42% (2004)

59% (1982)

68% (2005)

69% (2005)

63% (1993)

80% (2005)

54% (2014)

70% (2010)

77% (2003)

62% (1993)

72% (2007)

78% (2009)

0% (1961)

79% (1988)

60% (2011)