66% (2013)

78% (1999)

48% (2006)

61% (1968)

50% (2014)

40% (2003)

72% (1969)

39% (2011)

72% (2012)

50% (2001)

0% (1987)

70% (2010)

30% (1971)

71% (2004)

70% (1965)

49% (1973)

45% (2005)

64% (1995)

47% (2005)

35% (1971)