61% (2011)

66% (1992)

70% (2002)

64% (2006)

55% (2002)

63% (2000)

69% (2001)

69% (2000)

66% (2006)

51% (1999)

71% (2003)

63% (2006)

64% (1999)

100% (2000)

43% (1998)

70% (2000)