I haven't checked this data in 10 years at least. The WHO used to have data for dairy consumption and heart attacks, so it was easy to see the correlation. What always stood out was Japan, not only because of the nominal dairy consumption but the very high smoking rate.
Osteoporosis (the death of osteoblast cells, which isn't easily measured while you're alive) manifests differently in different people, probably because of supportive muscles and such. You're on here, so, you're not some frail old lady with no leg muscles so not surprised. As well, osteoporosis rates are on the WHO site. 10 years ago, it was endemic in Sweden and Norway, rare in Japan.
So far as calcification of the arteries vs heart attacks - the two aren't necessarily related. Destabilizing the calcium channel osmotic process by elevated blood levels of calcium doesn't necessarily have to involve calcification.
Most likely, people who consume calcium supplements and dairy products consume so much calcium the body just can't draw it out of the blood fast enough, no matter what the age or whether or not osteoblast cells remain.
Obviously, the calcium came from somewhere. Animals in nature don't have this problem, so it clearly is something unique to the human diet.