62% (1997)

72% (1989)

69% (2021)

68% (1996)

69% (2009)

51% (2008)

40% (1995)

65% (1997)

70% (1982)

66% (2006)

56% (2000)

66% (2019)

57% (2003)

58% (1988)

59% (1985)

70% (2000)

66% (2007)

72% (2007)

65% (2008)

72% (2004)