61% (2015)

61% (2015)

70% (2004)

71% (2000)

49% (2003)

77% (1997)

72% (2003)

75% (1999)

64% (2010)

77% (2006)

73% (2001)

70% (2010)

76% (2002)

68% (2004)

56% (2005)

60% (2005)

63% (2007)

62% (2004)

0% (1992)

42% (2005)