At Statistics Canada, we do periodically change.... The CPI is essentially a sort of weighted average of a basket of goods consumed by Canadian households. Over time, this basket changes. One reason it could change is that there are commodities that may have existed in the past that don't exist anymore—I think of DVDs or video cassette tapes—and there's the introduction of new commodities like the Internet or cellphones. The composition of the basket is continually updated.
In terms of the weights that are applied over the course of the pandemic, we decided to increase the frequency of those updates so that we could better reflect the change in consumption patterns in Canadian households.