60% (1959)

61% (1967)

65% (2009)

64% (2005)

32% (2010)

58% (1958)

55% (1946)

55% (2008)

58% (1991)

40% (1961)

63% (2017)

42% (1956)

50% (1937)

58% (2007)

54% (1976)

40% (1959)

53% (1967)

70% (1922)

55% (1993)

69% (1949)