81% (2009)

52% (2002)

0% (1995)

44% (2005)

57% (2010)

45% (2010)

43% (2005)

50% (1990)

67% (1999)

50% (1993)

43% (2004)

42% (2007)

74% (1994)

56% (2000)

80% (2002)

56% (2002)

46% (1990)

60% (2006)

0% (1990)

60% (2006)