I'm not sure what you're looking for. If you want to see what the measurements of the ozone layer (in Dobson units) looked like before the impact of CFCs began to take effect, here's the data:
This is from The History Behind the Ozone Hole
1) Satellite based measurement of stratospheric ozone began in 1978. The downslope in your chart begins in 1978. Large area measurement of stratospheric ozone was impossible prior to 1978.
2) Your chart ends in 1995. Satellite based observation of stratospheric ozone continues to this day. Where are the rest of the data?
In fact, my solution is to tax the H--- out of those jackasses who ride around in SUVs, etc, gas guzzlers which over-pollute, all for the twits among us who have never seen a dirt road in their lives. They talk about freedom to drive what they want, regardless of the consequences. They don't care about the price of gas, or pollution at all, so I return the favor and do not care about them. Besides, if you have ever been on the road with one of those "tankers," you know that they have the same mentality as pickup truck drivers: "I'll run your a-- off the road, whatever it takes to let you know who owns it." They deserve no consideration at all.
LOL, maybe we can trick the greenies into thinking that we need a express lane exclusively for non-SUV-Pickups-minivans, that will reduce traffic by 90%. Get these clowns, along with the "50-MPH cell phone users" and self-absorbed dingbats who can't grasp the concept of "slower traffic, get in the right-most lanes," and I might be able to actually drive on a freeway without ever needing to use my brakes. But that would be too much like heaven, wouldn't it?
I believe that those orgs above are more about anti-Capitalism than any other issue. 'Tis passé to be a commie but in vogue to be a greenie, a distinction without a difference in my view.....