What were the annual housing backlog figures in each province in the (a) 1994-95, (b) 1995-1996, (c) 1996-97, (d) 1997-98, (e) 1998-99, (f) 1999-2000, (g) 2000-01, (h) 2001-02, (i) 2002-03, (j) 2003-04, (k) 2004-05, (l) 2005-06, (m) 2006-07, (n) 2007-08 and (o) 2008-09 financial years?