According to Bloomberg, 119 million doses of the vaccine has been administered till now. I don't have the number of individuals who have been completely vaccinated (i.e two doses) for all the countries, but for USA the figure stands at 2.3% of the population and therefore I assume that a large part of the 80 plus population is covered. For the UK, the same figure stands at 0.8%. And for most of the EU nations, it is between 1% and 2%
I was checking Utah numbers yesterday. They have vaccinated around 12% of population. Those over 70% that are at priority list only 40% vaccinated. I would expect that number to be higher but this way also others will get vaccine earlier.
In Europe now 3rd vaccine is getting rolled out. Oxford/AstraZeneca. This is the vaccine Europe ordered most, but sadly had its testings delayed and took this long to be approved in EU. So things should drastically change in upcoming weeks with how many gets vaccine in EU. Also this vaccine needs second vaccine 3 times latter then first two vaccines, so more people will get vaccine with one dose with same number of arrived doses.