58% (1989)

56% (1991)

53% (1991)

57% (1991)

60% (1990)

62% (1996)

52% (1994)

45% (2020)

46% (1989)

56% (1993)

58% (1984)

63% (1992)

49% (1993)

42% (1999)

46% (1998)

36% (2003)

46% (2010)

49% (2017)

34% (2006)

40% (2005)