66% (2013)

78% (1999)

61% (1968)

72% (2012)

48% (2006)

64% (1995)

55% (1993)

72% (1969)

39% (2011)

58% (2014)

49% (1973)

46% (2005)

30% (1971)

43% (2001)

70% (2010)

45% (2005)

50% (2014)

71% (2004)

42% (2003)

50% (2001)