59% (2009)

30% (2001)

65% (2006)

58% (2009)

66% (2007)

54% (2007)

40% (2004)

53% (1998)

48% (2007)

60% (2003)

40% (2006)

66% (2004)

56% (2005)

69% (2004)

52% (2009)

50% (2005)

46% (2004)

20% (2008)

0% (2008)

70% (2003)