You can search for a guy on the CorbinFisher site and click on the model's name to see a complete list of every scene he's done.
In Harper's first year, 2012, he appeared in 20 scenes. Over the course of that year, he jacked off once, he had 2 guy-girl scenes, he did 4 bi scenes, and he did 13 gay scenes. Over the course of his 20 scenes, he fucked 13 guys and got fucked by 4 guys.
In Harper's second year, 2013, he appeared in 17 scenes. He did 1 guy-girl scene, zero bi scenes, and 16 gay scenes. Over the course of 2013, he fucked 10 guys and got fucked by 6 guys. (He also appeared in some behind-the-scenes footage from Corbin Fisher's European trip.
For Harper's third year, 2014, there are a total of 7 scenes on the Corbin Fisher website. All 7 are gay scenes where Harper fucks his partner.
In 2015, Harper is back up to 17 scenes, and he rediscovered the joy of bottoming. He did 4 bi scenes and 13 gay scenes. In his 2015 scenes, Harper fucked 4 guys and got fucked by 11 different guys.
Harper worked for CF for a few more years and did at least 26 other scenes, but the years I broke down above were pretty typical for a popular CF model. It's also worth noting that it's not possible to say *exactly* how many scenes Harper shot in a given year, because we don't know exactly when each scene was shot, and because for a while Corbin Fisher was creating separate content for its CF Select site, so some scenes might have been added to the main Corbin Fisher website years after they were shot.