62% (1999)

60% (2002)

63% (2013)

68% (2000)

51% (2009)

60% (1996)

65% (1998)

60% (1997)

71% (1998)

48% (2001)

38% (2003)

55% (1998)

40% (1997)

47% (2005)

0% (2003)

50% (1999)

36% (2003)

60% (1985)

68% (2002)

71% (2001)