58% (1985)

43% (1988)

50% (1998)

67% (1987)

53% (1982)

65% (1987)

66% (1989)

64% (1985)

47% (1983)

55% (1983)

59% (1988)

55% (1996)

47% (1999)

49% (1990)

67% (2007)

50% (1997)

0% (2019)