61% (2002)

71% (2004)

64% (1999)

65% (2005)

54% (2009)

73% (2000)

69% (2001)

56% (2009)

59% (2001)

51% (2006)

54% (1998)

49% (1995)

61% (1998)

62% (2021)

52% (1993)

57% (2006)

53% (1997)

60% (2001)

60% (2001)

61% (2003)