https://blockchain.info/charts/n-transactions-total

over the past 52 weeks (364 days actually).

  616,311,000
- 503,525,000
  -----------
  112,786,000
  ===========

Divide this by 31,449,600 seconds

Equals 3.5862 transactions per second
between Feb 16th 2020 at 10am and Feb 15th 2021 at 10am