61% (2014)

59% (2014)

60% (2013)

64% (2012)

69% (1986)

64% (2006)

68% (2003)

63% (1991)

75% (2020)

63% (2017)

64% (2014)

68% (2014)

63% (2012)

58% (2011)

65% (2009)

59% (2001)

61% (2000)

63% (2003)

59% (1995)

70% (1994)