US Expatriations and Renunciations

Number of names appearing per year on the IRS' Quarterly Publication of Individuals Who Have Chosen to Expatriate.

Note that expatriations are typically reported with a delay of 5 quarters. Expatriations reported in a given period, therefore, actually took place about 15 months prior.
Chart: IMI (imidaily.com) Source: US Federal Register Created with Datawrapper