78% (1999)

66% (2013)

57% (2009)

60% (2007)

61% (1968)

0% (2006)

62% (2007)

60% (2010)

70% (1965)

70% (2010)

35% (1971)

0% (1987)

71% (2004)

50% (2001)

48% (2006)

72% (1969)

73% (2012)

39% (2011)

50% (1973)

64% (1995)