61% (1999)

58% (2003)

60% (2002)

32% (2009)

37% (1996)

49% (2000)

57% (2001)

58% (2002)

50% (2006)

30% (2001)

33% (2002)

42% (1996)

43% (2005)

35% (1994)

26% (1995)

0% (1995)