Sample label key
|NSCG||CG||National Survey of College Graduates (SESTAT version)|
|SDR||DR||Survey of Doctorate Recipients (SESTAT version)|
|NSRCG||RG||National Survey of Recent College Graduates (SESTAT version)|
|SDR-X||DR-X||Survey of Doctorate Recipients (full survey)|
|ISDR-X||ID-X||International Survey of Doctorate Recipients (full survey)|
Select samples and variables to build a data extract.