46% (2005)

45% (1997)

47% (2001)

56% (2006)

55% (2005)

50% (2001)

36% (2000)

42% (2002)

35% (2003)

44% (2005)

50% (2004)

42% (2003)

57% (1999)

37% (1998)

48% (2004)

56% (2012)

52% (2003)

38% (2002)

48% (1999)

32% (1997)