I can't point to anything specific in respect to Public Works, but over the period portrayed here, 2001-02 through 2005-06, Canadian Heritage has a relatively stable share of its overall estimates. During that period quite a number of new spending initiatives in the Canadian Heritage portfolio were announced in a sequence of budgets. I believe you would be seeing the first-year spending amounts there in respect to those various initiatives.
On February 28th, 2007. See this statement in context.