66% (2015)

41% (1995)

60% (1951)

68% (1987)

62% (1960)

0% (2017)

46% (2011)

59% (2008)

68% (1972)

55% (1977)

65% (2003)

54% (1987)

54% (1985)

68% (2002)

55% (2004)

55% (2015)

59% (2005)

58% (1972)

44% (2009)

66% (1950)