54% (2009)

71% (2012)

70% (2000)

65% (2000)

43% (1993)

57% (2009)

60% (2003)

59% (2007)

65% (2008)

63% (1998)

59% (1994)

0% (1991)

40% (1993)

0% (1997)

56% (2012)

35% (1991)

0% (1992)

70% (1992)

0% (2010)