45% (2007)

56% (2017)

63% (2012)

59% (2013)

68% (2013)

43% (1970)

47% (2007)

54% (1991)

54% (1968)

54% (1996)

64% (2008)

50% (1972)

70% (2018)

65% (2014)

48% (1978)

60% (1944)

50% (1980)

28% (1975)

52% (1963)

63% (1950)