So something like that. I wanna make sure that it looks at the same, looks like it's the same rate right over here. And you could just try to eyeball it. You could say well see, 20 years ago, 1945, if I were to extend that line backwards, it looks like there were about 52% of the population was smoking. This seems like we're about 52% right over here. Another way to think about it would be to actually try to calculate the rate of decline. And let's say we do it over every 20 years because that'll be useful because we're going 20 years back.