53% (1999)

35% (1998)

38% (2007)

67% (1999)

61% (2002)

55% (2015)

53% (1997)

33% (1999)

49% (2009)

65% (2002)

52% (2004)

49% (2004)

63% (2009)

35% (1997)

52% (2010)

62% (2003)

60% (2001)

50% (2009)

68% (2005)