54% (2003)

50% (2008)

61% (2006)

63% (2002)

74% (1999)

45% (2001)

0% (1979)

30% (2009)

60% (2003)

60% (2002)

57% (2011)

0% (2006)

39% (2004)

75% (2002)

53% (1998)

50% (2008)

64% (2011)

62% (2001)

68% (2013)

53% (2001)