A year ago there were almost 90,000 applications waiting for the citizenship test. When the pandemic required offices to be closed with in-person meetings and gatherings cancelled and with many other staff working from home. testing for the most part came to a halt except in very limited special cases.
By the end of January over 300,000 had been waiting for the citizenship process to resume with over 100 thousand waiting for their actual citizenship tests.
Even with the backlog, the federal government announced in April, an additional pathway to citizenship for 90,000 people living in Canada to be eligible for the citizenship process. This would apply to international students in graduate studies.
So now u can do the math.
https://www.rcinet.ca/en/2021/05/17/backlog-growing-for-immigrant-citizenship-applications-in-canada/