I won't claim those figures are "wrong" exactly, but I don't trust them much either because of reporting errors. Some folks may not have been tested for COVIC-19 and still be added to some list. Reporting from places like Iran strike me as not very reliable. I think it clear that older folks are hit harder, just as they are with flu. And apparently some folks have contracted the illness and had no symptoms, though how anyone would know that without broad scale testing I have no idea. If I get slightly ill I'm not going to get tested for it.
The specific percentages however strike me as very possibly wrong.