Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_22731 ( "State and District of Columbia" text, "Obese adults" text, "Overweight (incl. obese) adults" text, "Obese children and adolescents" text, "Obesity rank" real )

### Question ###
What are all percentages of overweight or obese adults for obesity rank of 21?

### Accurate SQL ###

SELECT "Overweight (incl. obese) adults" FROM table_22731 WHERE "Obesity rank" = '21'