48% (1995)

58% (1995)

49% (1990)

48% (1991)

44% (1991)

49% (1994)

40% (1995)

53% (1995)

44% (1997)

47% (1987)

42% (2004)

49% (1997)

77% (1997)

44% (1992)

50% (1995)

40% (1991)

34% (2002)

42% (1995)

37% (1995)

40% (1996)