60% (2009)

67% (2011)

50% (2011)

46% (2013)

90% (2003)

0% (1995)

61% (2002)

64% (1993)

55% (2000)

0% (2005)

0% (2007)

53% (2003)

50% (1998)

70% (2000)

60% (1993)

0% (2000)

70% (2009)

20% (2004)

100% (1992)

38% (1993)