90% (2014)

45% (1997)

100% (1987)

60% (1993)

45% (2005)

63% (1980)

67% (2004)

94% (2001)

40% (2005)

0% (1995)

80% (1971)

0% (2006)

80% (2008)

74% (2004)

70% (2012)

70% (2007)

0% (1964)

0% (2013)

49% (2009)

0% (2016)