It is true that we have revised down our outlook for the level of nominal GDP. However, it hasn't been revised down by as much as that forecast adjustment factor. I think on average we've revised down our outlook by about $15 billion, just to put it in a rough ballpark.
The choice of characterizing it as excessive is relative to historical experience and how we've seen the private sector misses. At least historically speaking, it's very rare that you see both years come in so weak. We can put aside the longer term or the more medium term, but at least one year and two years out, it is very rare, outside of the great recession, to see this happening.
The last point I would comment on is about the use of prudence. The government isn't constrained like households and businesses are. When there are shocks to the economy, the government can absorb them, whereas it's very difficult for businesses and households to do so. That and the current fiscal situation in Canada are other factors you want to take into account in setting these adjustments.
It's also possible to have adjustments made on the opposite side. I'm sure there could be instances when the government might feel that there's some upside risk to the private sector outlook, but that's something we just haven't seen historically. It's always been an adjustment to the downside.