47% (1995)

49% (1994)

48% (1991)

57% (1995)

49% (1990)

53% (1991)

53% (1995)

49% (1997)

42% (2004)

44% (1997)

40% (1995)

44% (1991)

35% (1988)

44% (1992)

50% (1995)

48% (1995)

34% (2002)

45% (1994)

42% (1995)

40% (1996)