30% (2009)

75% (2008)

32% (1998)

72% (1956)

77% (1978)

74% (2006)

70% (2007)

45% (1964)

66% (2009)

42% (2003)

61% (2012)

0% (2001)

60% (1975)

51% (1979)

10% (2003)

72% (1978)

73% (2001)

61% (2011)

77% (2002)

75% (2013)