All you have to look at is table 3 (Revenues) and table 7 (Expenses) and you get the raw dollars, not figures relative to GDP, so you can easily see that there was more expenditures than revenues in every Mulroney year. 

And before you get into the notion of debt servicing crippling Mulroney... the cost of servicing the debt in the Expenses table balloons from 16.9Bn in 1982 to 41Bn by 1992, or from 17% of expenses to 28% of expenses. Any debt problems he inherited (and he did) were clearly exacerbated by taking the federal debt from 230Bn to 620Bn and tacking on significantly larger annual interest payments to our ongoing costs.

You don't see federal finances getting interest payments back down to the percentage of expenses they represented under Trudeau until 2004, in fact.