56% (1999)

52% (1998)

52% (1996)

55% (1987)

53% (2002)

55% (1982)

59% (2008)

62% (1985)

64% (1981)

59% (2014)

52% (1990)

55% (1981)

53% (2012)

58% (2004)

56% (2021)

50% (2006)

49% (2003)

58% (1980)

50% (1997)

56% (1981)