Variable name: REC
This is a subscript assigned to the data file. The data are divided into five files for each round, and the data file names are a combination of a prefix indicating the survey round and a subscript indicating the data file.
For example, in the data files “p10_1.csv” and “p10_2.csv”, “1” and “2” are listed for each REC.
1 2 3 4 5