65% (2011)

64% (2000)

75% (1996)

58% (2001)

65% (1997)

60% (2000)

65% (2003)

60% (2003)

49% (2013)

58% (2001)

55% (2006)

77% (2001)

71% (1996)

63% (2007)

69% (2007)

75% (2005)

53% (2008)

54% (2010)

54% (2009)

62% (2005)