58% (2008)

55% (2009)

70% (1992)

50% (2003)

75% (2004)

70% (2010)

56% (2002)

61% (2001)

0% (2006)

65% (1999)

80% (1994)

54% (2005)

70% (1998)

38% (2000)

64% (2002)

58% (2013)

20% (1997)

80% (2004)

63% (1997)

0% (1999)