0% (2024)

42% (2023)

59% (2021)

60% (2022)

58% (2020)

67% (1984)

48% (2001)

72% (1972)

51% (2007)

45% (1969)

60% (1960)

50% (2018)

62% (2015)

42% (1988)

54% (2006)

42% (1974)

58% (1985)

59% (1986)

49% (1997)

30% (2009)