70% (2013)

72% (2014)

76% (2006)

46% (2004)

66% (2000)

49% (2010)

52% (2001)

61% (2001)

40% (2002)

40% (2002)

43% (2001)

30% (1998)

49% (2004)

56% (1993)

50% (1997)

0% (1993)

0% (1998)

40% (2002)

30% (1997)

0% (2002)