That link cites the number of awards of a certain type that have been awarded. Notice that McClellan Awards are given to 1975 through 1992. The year models that Dave McClellan was Chief Engineer for Corvette. So the 113 McClellan cars include 75-82 C3's. (There are a bunch of McClellan 78 pace cars and 25th's).
As far as determining how many Awards have been awarded for a certain year, that is not publicly available. The guy most likely to know would be Allen Tremain, the 84-89 National Team Leader. Most NCRS guys don't "dick measure". Our awards are recognized as a formidable "achievement". Guys that have done it, know what it takes, and are respectful of anyone else that has done it too. The numbers just don't matter. Whether 2 or 50, because The Standards are the same for every judging, the "achievement" is identical. And we acknowledge this.
Now that I've got my NCRS Ambassador hat on, I encourage you to join NCRS, receive the publications, and learn more about the organization. Perhaps attend a Chapter Judging meet local to you either as just an observer, or even enter your car. The membership is $35 a year, and a Chapter Judging entry is about $45. A lot cheaper than Bloomington, and I guarantee you will learn a lot about your car, and the atmosphere will be much more congenial. Warning: You may get hooked. :grin: Give it a shot.