71% (2010)

54% (1988)

50% (1986)

47% (1988)

50% (1990)

31% (2002)

49% (1990)

42% (1984)

42% (1989)

45% (1988)

54% (1987)

27% (1985)

23% (1992)

24% (1988)

0% (1986)

0% (2020)