74% (1981)

67% (1993)

69% (2010)

69% (2023)

70% (2015)

69% (2018)

40% (2003)

65% (1988)

66% (1999)

71% (2001)

67% (1986)

63% (2022)

68% (2025)

51% (1986)

63% (1958)

78% (2024)

35% (2011)

70% (1964)

80% (1999)

60% (2009)