20% (1975)

67% (2000)

51% (2009)

55% (2016)

36% (1996)

62% (1984)

71% (1949)

71% (1966)

61% (2009)

47% (2007)

67% (2013)

58% (2022)

52% (1916)

63% (2012)

66% (1965)

65% (2009)

62% (2001)

60% (2007)

60% (2012)

60% (2021)