50% (2003)

71% (1992)

50% (2009)

58% (2005)

70% (1998)

59% (2002)

63% (1997)

62% (2001)

80% (2004)

80% (2004)

33% (2008)

52% (2009)

64% (1999)

70% (2010)

58% (2008)

0% (2006)

42% (2002)

38% (2000)

0% (2005)

70% (2002)