72% (2022)

70% (2024)

68% (2019)

72% (2018)

64% (2018)

70% (2010)

65% (1987)

65% (1974)

0% (1958)

61% (1972)

71% (2009)

66% (1927)

0% (2012)

65% (2020)

45% (2018)

33% (1963)

62% (2013)

68% (2012)

57% (1966)

0% (1970)