0% (1998)

0% (2006)

0% (1988)

50% (2001)

51% (1976)

60% (1985)

10% (1989)

40% (1980)

60% (1992)

20% (1998)

70% (2000)

59% (2008)

35% (1988)

40% (2000)

42% (2008)

50% (1985)

0% (1986)

60% (1981)

55% (2006)

0% (2008)