2018-2020 (did not include 2021). The articles came in last July so any update to include 2021 stats probably would come out around the same time (July 2022).
Unfortuantely, Darnold has also had issues when he’s kept clean. According to Pro Football Focus, Darnold has the lowest passing grade (55.7) from a clean pocket since the 2018 season. Bridgewater ranked No. 32 in that stat last year, while Darnold ranked dead last at No. 39.
Those predicting that Sam Darnold will provide a massive upgrade over Teddy Bridgewater in Carolina are in for a rude awakening. Bridgewater was hands down the better quarterback in 2020, outperforming Darnold in completion percentage (69.1% vs. 59.6%) and clean pocket passer rating (105.3 vs. 81.7).
Darnold’s continued woes from a clean pocket — worst PFF passing grade since 2018 (55.7) — do not bode well for the Carolina offense to take a massive step forward, as a quarterback’s numbers from a clean pocket are a reliable predictor of future success. Even with talented wide receivers and perhaps the game's best pass-catching running back, this entire offense is a work in progress and its fantasy assets remain volatile.