51% (2005)

56% (2004)

40% (2002)

60% (2006)

80% (1998)

0% (2001)

40% (1994)

56% (2000)

48% (2000)

46% (1995)

20% (1997)

0% (1999)

38% (1998)

40% (2004)

30% (2000)

56% (2009)

53% (2000)

35% (2011)

38% (1994)

48% (2003)