38% (2000)

58% (2005)

20% (1997)

50% (2003)

64% (1999)

62% (2001)

71% (1992)

59% (2002)

80% (2004)

70% (1998)

58% (2008)

80% (2004)

70% (2002)

42% (2002)

0% (2005)

0% (1999)

52% (2009)

58% (2013)

70% (2010)

33% (2008)