65% (1993)

0% (1997)

80% (2000)

60% (2004)

70% (1994)

0% (2013)

0% (1994)

60% (2011)

48% (1990)

0% (1994)

40% (2005)

0% (2000)

0% (2001)

0% (2008)

90% (2001)

0% (1992)

0% (2003)

60% (2010)

70% (2005)

55% (2004)