67% (2005)

49% (2008)

51% (2003)

72% (2004)

55% (2001)

71% (2011)

0% (1970)

50% (1939)

51% (1970)

35% (1961)

65% (1975)

74% (2016)

56% (1977)

60% (2014)

58% (1974)

65% (1997)

0% (1970)

71% (2014)

58% (1976)

59% (1980)