80% (1994)

71% (1992)

79% (2004)

0% (2006)

58% (2008)

50% (2003)

62% (2001)

80% (2004)

20% (1997)

33% (2008)

64% (1999)

55% (2009)

59% (2002)

70% (2010)

70% (1998)

42% (2002)

0% (2005)

54% (2005)

50% (2009)

38% (2000)