The Bureau of Economic Analysis provides the following explanation of this data:
"Personal income is the income received by, or on behalf of, all persons from all sources: from participation as laborers in production, from owning a home or business, from the ownership of financial assets, and from government and business in the form of transfers. It includes income from domestic sources as well as the rest of world. It does not include realized or unrealized capital gains or losses."
"Personal Income Per Capita is calculated as the total personal income of the residents of a state divided by the population of the state. In computing per capita personal income, BEA uses midquarter population estimates based on unpublished Census Bureau data."
In addition, they explain that "personal income is measured before the deduction of personal income taxes and other personal taxes and is reported in current dollars (no adjustment is made for price changes)."
Percentage Change in Personal Income is calculated as the percentage change in personal income in all fifty states and District of Columbia from the previous year. The change in personal income takes into account all income components – earnings, property income (dividends, interest and rent), and transfer receipts.
The Personal Income Ranking of the states is for personal income per capita from highest to lowest. For example, in 2018 Florida ranked number one for having the highest personal income per capita, and Missouri ranked 50 for having the lowest.