50% (1957)

58% (1989)

62% (2013)

59% (2003)

60% (2020)

55% (2018)

59% (2018)

40% (2000)

20% (1991)

61% (2019)

0% (1921)

40% (2017)

47% (1985)

0% (1979)

58% (2015)

65% (2014)

0% (2011)

40% (2013)

58% (1995)

39% (1977)