63% (1999)

60% (2003)

50% (2009)

60% (1985)

58% (1996)

63% (2013)

41% (1999)

66% (1998)

67% (2002)

71% (2001)

70% (2000)

58% (1997)

68% (2001)

60% (1998)

36% (2003)

49% (1997)

40% (1997)

70% (1998)

50% (1998)

48% (1998)