58% (2003)

40% (1995)

30% (1998)

60% (2000)

100% (2005)

63% (1996)

0% (1997)

56% (2004)

50% (1999)

45% (1970)

70% (2002)

0% (1998)

45% (2001)

0% (2004)

0% (2005)

0% (2000)

20% (2000)

0% (2005)

0% (1999)

0% (2005)