54% (1991)

46% (1989)

49% (2008)

58% (1989)

64% (1992)

60% (1990)

37% (2003)

42% (1999)

56% (1993)

59% (1984)

45% (2020)

52% (1994)

62% (1996)

40% (2000)

43% (1990)

40% (2005)

56% (1991)

48% (1997)

53% (1993)

57% (1991)