68% (1952)

45% (2003)

62% (1970)

74% (2004)

65% (2002)

35% (1992)

0% (2007)

78% (2017)

60% (1967)

45% (1987)

37% (2010)

80% (2008)

0% (1999)

0% (2013)

0% (2011)

79% (2010)

0% (1995)

80% (2007)

60% (2010)

53% (1986)