78% (1999)

66% (2013)

60% (2007)

61% (1968)

57% (2009)

47% (2005)

73% (2012)

50% (2014)

62% (2007)

52% (2010)

0% (1985)

40% (2003)

64% (1995)

50% (2011)

48% (2006)

46% (2005)

39% (2011)

0% (2006)

60% (2010)

50% (1973)