0. Farmers
10. Agricultural employees
21. Industrialists
22. Artisans
23. Fishers
26. Whole-salers
27. Small merchanges
30. Free-market professions
32. Teachers, literary and scientific professions
33. Engineers
34. Master administrative executives
41. Instructors, diverse intellectual professions
42. Medical and social services
43. Technicians
44. Administrative executives
51. Office employees
53. Business employees
60. Supervisors
61. Skilled workers
63. Specialized unskilled workers
65. Miners
66. Boatmen and fishers
67. Apprenticed workers
68. Unskilled workers
70. Servants
71. Housewives
72. Other service staff
80. Artists
81. Clergy
82. Army and police
91. University students and other students
92. Military of the contingent
93. Former farmers (farmers and paid workers)
94. Retired from business
95. Retired from public service
96. Former paid employees from the private sector
97. People not working of age 17 or less
98. Other people not working between 17 to 64 years of age
99. Other people not working between 65 years of age or more