54% (2010)

73% (2000)

49% (2003)

65% (2008)

75% (2009)

67% (1996)

57% (2001)

64% (2008)

56% (1991)

48% (2008)

60% (2001)

60% (1991)

56% (1999)

62% (1996)

30% (2002)

0% (1998)

0% (1999)

52% (2001)

20% (1996)

58% (2003)