41% (1958)

69% (2001)

62% (1977)

64% (1998)

60% (2006)

64% (1986)

65% (1993)

48% (1983)

41% (2005)

48% (1989)

45% (2007)

64% (2017)

64% (2018)

47% (2020)

70% (1979)

63% (2020)

49% (2006)

47% (2019)

65% (2021)

73% (1987)