I mean all you have to do is change the 2021 to 2020 [1] and you immediately get an article talking about 4.8% increase in May 2020 [2].

[1]: https://www.google.com/search?q=rising+food+prices&tbs=cdr%3...

[2]: https://www.cbpp.org/blog/rising-food-prices-means-rising-ne...