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