61% (2015)

61% (2015)

72% (2003)

69% (2010)

69% (2004)

77% (2006)

49% (2003)

64% (2010)

75% (1999)

71% (2000)

77% (1997)

73% (2001)

76% (2002)

72% (2008)

70% (2007)

60% (2005)

62% (2004)

66% (1995)

61% (2000)

67% (2006)