51% (1992)

56% (1999)

48% (1999)

46% (1994)

39% (1996)

48% (1995)

57% (2014)

57% (2000)

38% (1994)

46% (2004)

38% (1995)

35% (1995)

27% (2004)

42% (1993)

49% (1997)

39% (1993)

28% (1995)

37% (1996)

56% (1997)

43% (1995)