73% (2000)

64% (2008)

54% (2010)

65% (2008)

50% (2003)

75% (2009)

50% (2008)

66% (1996)

57% (2001)

48% (1995)

56% (1991)

62% (1996)

57% (1991)

20% (1996)

28% (1996)

57% (1999)

70% (2008)

65% (2006)

0% (1995)

70% (2006)