58% (1999)

38% (2002)

48% (1997)

33% (1995)

33% (2005)

42% (1994)

44% (1995)

56% (1997)

45% (2011)

41% (1994)

43% (2012)

44% (1993)

48% (1999)

0% (2001)

37% (2012)

60% (1996)

35% (1993)

35% (1992)

60% (1996)

32% (2005)