https://blockchain.info/charts/n-transactions-total over the past 52 weeks (363 days actually). 281,638,496 - 179,454,927 ----------- 102,183,569 =========== Divide this by 31,363,200 seconds Equals 3.2581 transactions per second between Dec 15th 2016 at 10am and Dec 13th 2017 at 10am