Tollmark
Corrections
Every correction we make to a published figure, dated, with what caused it.
Last updated
When a figure on this site turns out to be wrong, we change it and record the change here — what it was, what it became, and why it was wrong in the first place. Nothing is quietly edited.
No corrections have been published, because no figures have been published yet. This log begins with the first live data and is not reset.
How a correction happens
Rates are re-checked nightly against their source. Any change larger than two percentage points is held for a person to look at before it reaches a page — a large move is usually real, but it is also what a parsing bug looks like.
If you have spotted something wrong, tell us and include the page and the figure. We would rather hear it from you than not.