Codes and Frequencies
From 1994 forward, EDGRADE distinguishes between years of college (1-4 years) and graduate school (1-2 years). Prior to 1994, there are six years of college codes (1-6 years). We consider 5 and 6 years of college prior to 1994 the same as 1 and 2 years of graduate school in 1994 and later, respectively.
- Persons enrolled in school
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