I skimmed over it quickly, and noticed that in every example I spotted, the difference had grown, but the direction of change on both sides had been the same. S

I skimmed over it quickly, and noticed that in every example I spotted, the difference had grown, but the direction of change on both sides had been the same. Some countries were moving faster than others, but they were going in the same direction. So I kind of wonder whether the whole framing was mostly chosen for sexiness.