30% (2001)

53% (2007)

53% (1998)

58% (2009)

59% (2009)

66% (2007)

65% (2006)

52% (2009)

48% (2007)

40% (2004)

48% (2005)

20% (2008)

66% (2004)

60% (2003)

70% (2007)

0% (2008)

0% (2007)

70% (2003)

56% (2005)

40% (2006)