56% (1998)

35% (2004)

62% (2006)

57% (2008)

56% (1996)

58% (2005)

65% (1998)

80% (1998)

40% (2002)

40% (2004)

56% (2007)

51% (2004)

44% (2004)

48% (2000)

67% (1997)

75% (2000)

56% (2009)

51% (2005)

20% (1997)

45% (2005)