59% (2009)

72% (2006)

55% (2010)

57% (2007)

62% (2009)

50% (2001)

62% (1997)

52% (2010)

56% (2010)

69% (1976)

0% (2008)

0% (2008)

0% (2010)

50% (2002)

60% (2009)

0% (2010)

0% (2009)