That sounds like an almost unbelievable increase. What's the cause of something like that?
Cordex is right, the speed was a lot of it.
The other part is eForms and Electronic finger prints. You used to have to go to the sheriff or whomever and get two cards per tax stamp. Even if you were doing it yourself at home it was do form, get cover letter, fingerprint, picture, mail in to West Virgina certified mail...PITA.
With it all electronic, it's much simpler. I have a picture, and my .eft prints file in my gmail account. I can either e-mail them to my dealer and have them on the form 4 right there, or if doing a Form 1, I can literally do it from my phone. Doing the paperwork all in one place, at the shop makes it seem like just an annoying 4473, as opposed to a trip to Walgreens for a photo, a trip to sheriff's office for prints, and a trip to the post office to mail everything, spread over a couple days.
The SilencerShop kiosks that made everything one stop shopping really started that.