60% (2002)

63% (2002)

52% (2001)

55% (2003)

60% (2006)

65% (2011)

53% (1998)

59% (2003)

62% (2001)

69% (1995)

39% (2004)

75% (2002)

48% (2008)

68% (2013)

45% (2008)

57% (2011)

75% (1999)

52% (2001)

30% (2009)

0% (1979)