65% (2004)

64% (2001)

90% (2005)

67% (1999)

63% (2000)

80% (2002)

77% (2000)

68% (2006)

67% (2011)

60% (2011)

65% (2003)

58% (2006)

20% (2004)

55% (2004)

64% (2001)

0% (2008)

0% (2006)

0% (2005)

50% (2004)

0% (1970)