64% (1999)

65% (2005)

70% (2004)

61% (2002)

74% (2000)

69% (2001)

60% (2001)

56% (2009)

55% (2009)

57% (2006)

50% (2006)

51% (1997)

55% (1998)

49% (1995)

53% (1993)

44% (2000)

62% (2021)

60% (1992)

61% (1998)

61% (2001)