10% (1995)

70% (1970)

0% (2009)

79% (2002)

0% (2000)

0% (2002)

67% (2001)

0% (1998)

80% (1998)

0% (1997)

20% (2003)

90% (2002)

63% (2005)

61% (2001)

0% (1996)

40% (2001)

30% (1998)

48% (2001)

66% (1998)

10% (1999)