1. Active variables
   1. Minor positions
   2. Major positions
   3. ASSO
      1. Asso
   4. BUSI
      1. Comp
      2. Fina
   5. INTEL
      1. Acad
      2. Educ
      3. Arts
   6. PRO
      1. MEDI
   7. TRAN
      1. Tran_yes
      2. Tran_no
   8. GOV
      1. Gov_c
      2. Gov_f
      3. Gov_l
   9. MIL
      1. MIL_A
      2. MIL_C
      3. MIL_U
   10. POL
       1. POL_C
       2. POL_D
       3. POL_F
   11. MISC
2. Filters
   1. Period
      1. 1
      2. 2
      3. 3
      4. 4
      5. 5
   2. Generation
      1. 1
      2. 2
      3. 3
      4. 4
      5. 5
3. Supplementary variables
   1. Birth data (year, province)
      1. Year
      2. Province
      3. Generation
         1. 1
         2. 2
         3. 3
         4. 4
         5. 5
   2. Education (highest degree obtained)
      1. Country of education
      2. Educational institution
      3. Degree
      4. Discipline
   3. (Death data)
      1. Country
      2. Year
   4. Political affiliation (POL)
      1. POL_C
      2. POL_D
      3. POL_F
   5. Period
      1. 1
      2. 2
      3. 3
      4. 4
      5. 5