We've traditionally included a contingency fund of about $3 billion, which in relation to combined expenses and revenues of about $600 billion is actually quite a small buffer in the grand scheme of things. At different points in time, the department and the government have chosen a contingency reserve of different amounts. In some years, the contingency has increased over time. Frankly, it was a subjective assessment, given the weakness in the economy, that a larger contingency was appropriate at that time.
On October 17th, 2017. See this statement in context.