The comparison is with workers aged 25 to 34 who stopped earlier
What the document says“is aged 25 to 34;”
The section sets the comparison as a working adult aged 25 to 34 who is not enrolled in an institution of higher education and who holds only a high school diploma or its equivalent, where the program awards a bachelor's degree or less, or only a bachelor's degree, where the program is graduate or professional. The figures come from Bureau of the Census data for the State, or for the whole country where fewer than half the institution's students live in that State, with graduate programs measured against the lowest of the State, State field of study and national field of study figures.
What the document actually says“is aged 25 to 34;”
The comparison group is aged 25 to 34.
They must not be in school. For most courses they hold only a high school award. For graduate courses they hold only a bachelor's degree.
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