64% (1999)

61% (2002)

65% (2005)

70% (2001)

74% (2000)

71% (2004)

55% (2009)

59% (2001)

51% (2006)

56% (2009)

57% (2006)

55% (1998)

61% (1998)

62% (2021)

53% (1993)

61% (2001)

52% (1997)

49% (2005)

44% (2000)

53% (1995)