Occupational unit - PCS
0 = 0. Farmers
10 = 10. Agricultural employees
21 = 21. Industrial workers
22 = 22. Artisans
23 = 23. Fishers
26 = 26. Whole-sale merchants
27 = 27. Small merchants
30 = 30. Free professions
32 = 32. Professors, literary and scientifc professions
33 = 33. Engineers
34 = 34. Administrative executives
41 = 41. Instructors, diverse intellectual professions
42 = 42. Medical and social services
43 = 43. Technicians
44 = 44. Medium-level administrative executives
51 = 51. Office employees
53 = 53. Merchant employees
60 = 60. Supervisors
61 = 61. Skilled workers
63 = 63. Specialized unskilled workers
65 = 65. Miners
66 = 66. Boatment and fishermen
67 = 67. Apprenticed workers
68 = 68. Manoeuvres
70 = 70. House servants
71 = 71. Housewives
72 = 72. Other service personnel
80 = 80. Artists
81 = 81. Clergy
82 = 82. Army and police
91 = 91. High school and college students
92 = 92. Military of the contingent
93 = 93. Former farmers (farmer and workers)
94 = 94. Retired from business
95 = 95. Retired from the public sector
96 = 96. Former employees from the public sector
97 = 97. Non active people from 17 to 64 years of age
98 = 98. Other people not active from 17 to 64 years of age
99 = 99. Other people not active from 65 years of age or more