61% (2020)

61% (2000)

64% (1998)

62% (2003)

61% (1991)

64% (1958)

58% (1983)

60% (1997)

63% (2016)

61% (1999)

57% (2011)

61% (1985)

67% (1982)

63% (1964)

65% (1995)

67% (1984)

64% (1999)

62% (1998)

69% (1932)

52% (2015)