As I had mentioned, we worked with our federal colleagues to create a supply and demand model that looks at a number of factors in the information that's shared with us from the provinces and territories. We look at the epidemiology of COVID-19 and its progression, as well as ICU utilization. As well, we needed to account for where there may be changes in policies in the jurisdictions on usage and how they were distributing the masks. As an example, with omicron, where there was increased transmissibility, we did see an increase in the utilization of N95 masks. Certainly, that helped to inform changes to what we saw as the annual requirements. That would then change what we saw as our stockpile numbers and our eight-week supply based on the data from the height of omicron. When we looked at this in December 2021, it was in the order of 139 million as an annual figures for all of the country, so I'm looking at the eight-week supply and what would be required.
When we saw increased utilization of N95s by the provinces during omicron, while I said we had an 80:20 allocation framework, we did switch to immediately pushing out 100% of the masks coming in the door to the jurisdictions to help address that need. As well, where there were N95 equivalents for masks that were not the preference of the health care system because of the requirements for fit testing, we were able to work with the jurisdictions to have a broader distribution within their systems applied to the health care sector so that we could maximize the use of those other masks.
Those are some of the methods by which we could determine the overall amounts, and working with the transparent allocation framework and the ongoing weekly conversations with the jurisdictions at the Logistics Advisory Committee allow us to get the right amounts out to the right areas.