62% (2009)

61% (2007)

64% (1998)

68% (2006)

65% (2007)

50% (2001)

58% (2003)

58% (2002)

40% (2003)

55% (2002)

70% (2000)

64% (2008)

57% (1996)

0% (2005)

0% (1999)

0% (2004)

0% (2000)

45% (2000)

60% (2001)

0% (1995)