BOC Overnight rate first touched 2% on January 14, 2002.
This event is noted to facilitate comparison with charts graphing longer periods.

BOC Overnight Rate
Source: https://wowa.ca/bank-of-canada-interest-rate
Frequency: BOC Overnight Rate is published on eight scheduled dates per year. (No set interval between dates.)

CPI
Source: Statistics Canada. Table 18-10-0256-01 Consumer Price Index (CPI) statistics, measures of core inflation and other related statistics - Bank of Canada definitions
DOI: https://doi.org/10.25318/1810025601-eng
Frequency: First of every month.

NOTE
Heavy blue bars occur on this chart where BOC Overnight Rate announcements and CPI data realeases occurred on dates that were within a few days of one another. This is because for every date on which CPI data was released, that point is plotted and a BOC rate bar is drawn whose value is the previously most recent BOC rate, and vice versa. Net result is there is a corresponding BOC rate bar for every CPI point, and vice vera.

Chart by Bill Appledorf