64% (2002)

0% (1999)

0% (1996)

58% (2011)

56% (2020)

20% (2001)

35% (2002)

0% (1990)

0% (1985)

0% (1995)

56% (2000)

20% (1998)

0% (2002)

20% (1998)

0% (1992)

70% (1992)

60% (2006)

60% (2005)

0% (1994)

80% (2010)