Well, we've witnessed a compounding effect. Even before COVID, we were in trouble. For example, weather-related delays occur every year and we expect those. Low temperatures in the winter require slower trains across the Prairies.
To a large degree, a lot of those things are expected. We deal with them and there are workarounds. However, it was just a compounding effect, starting with blockades, then COVID, and then all of the resulting domino effects from the lack of staff and capacity taken out of the system on the air side as an example. As well, you were dealing with the phenomenon of consumers purchasing online, because they couldn't travel, and you had an influx of volumes. Although those are probably temporary issues, it really strains the supply chain. When you have a blockade, when you have a strike, when you have a weather delay, it does not take long for whatever resilience we have to be beaten out of the supply chain. Those became acute issues that we were able to observe over the last two years.