66% (1993)

54% (2010)

60% (2005)

53% (2004)

54% (2015)

61% (2008)

65% (2008)

63% (1999)

60% (2011)

51% (2000)

50% (1995)

57% (1998)

60% (1992)

0% (2008)

80% (2002)

0% (1999)