60% (2006)

70% (1999)

70% (1993)

70% (2001)

60% (2006)

65% (2005)

70% (2004)

80% (2004)

78% (1979)

70% (2000)

0% (2011)

60% (2000)

57% (2000)

0% (2002)

0% (2008)

0% (2005)

0% (2005)

60% (2007)

70% (2000)

0% (2007)