Combined variable listing for all monthly Gallup Poll Social Series (GPSS) micro-datasets

Each of the monthly Gallup Poll Social Series (GPSS) micro-datasets has traditionally come with its own "codebook" (although it's really just a listing of variables, codes are not explained), in Microsoft Excel format. This combined variable listing, provided by Gallup Inc. on March 13, 2024, combines them into one file, potentially making it easier to discover what survey questions were asked in which month.