46% (1999)

64% (2001)

52% (2008)

45% (1996)

53% (1996)

48% (1995)

58% (2004)

62% (2009)

48% (1995)

37% (1996)

47% (1996)

59% (2001)

51% (2006)

57% (2000)

53% (2004)

48% (1992)

53% (2015)

61% (2001)

55% (2006)

50% (1999)