41% (1976)

40% (1984)

60% (2013)

61% (2012)

65% (2001)

40% (1985)

65% (1974)

60% (2012)

47% (2007)

53% (2015)

68% (1980)

61% (1953)

43% (1999)

50% (1997)

30% (1988)

58% (2003)

39% (2019)

56% (2015)

52% (2006)

50% (1989)