47% (1987)

47% (1995)

57% (1995)

36% (1995)

31% (2001)

43% (1994)

44% (1991)

40% (1995)

35% (1993)

48% (1991)

46% (1996)

39% (1995)

45% (1994)

35% (1992)

44% (2011)

53% (1991)

42% (2004)

22% (1997)

32% (1996)

37% (1995)