COVID-19 Vaccination Tracking

For those who want to short version: the more things change, the more they stay the same – especially the percentages. Here are some quick details.
This week things are looking up, just not as much as we might like. We’re vaccinating more than a million people a day, but we continue to be plagued by operational problems that prevent scaling up immunization rates at a quicker pace. What does the data tell us?
A weekly look at how the national and global vaccination programs are going. We're improving at getting vaccines into arms, but not improving as quickly as we should.
There are several websites compiling data on the vaccination roll-out. As was the case for tracking the spread of COVID-19, some metrics are more helpful than others. Here is our initial guide, and like COVID-19, subject to change.