69% (1991)

64% (1997)

72% (1997)

64% (2020)

60% (1997)

54% (1993)

64% (1995)

53% (2012)

64% (1997)

55% (1990)

57% (2003)

42% (2000)

50% (1989)

62% (1997)

40% (1992)

41% (1992)

46% (1992)

42% (1992)

55% (1999)

42% (1996)