76% (2005)

85% (2011)

69% (2007)

75% (2003)

67% (2000)

57% (1993)

80% (2006)

65% (2016)

58% (1999)

59% (2006)

0% (2001)

0% (1990)

0% (1991)

0% (2017)

70% (2010)

40% (2009)

70% (2008)

63% (1991)

0% (2001)

59% (2006)