Table 3 The values of the jobs defined in the user demographic file

* 0: “other” or not specified

* 1: “academic/educator”

* 2: “artist”

* 3: “clerical/admin”

* 4: “college/grad student”

* 5: “user service”

* 6: “doctor/health care”

* 7: “executive/managerial”

* 8: “farmer”

* 9: “homemaker”

* 10: “K-12 student”

* 11: “lawyer”

* 12: “programmer”

* 13: “retired”

* 14: “sales/marketing”

* 15: “scientist”

* 16: “self-employed”

* 17: “technician/engineer”

* 18: “tradesman/craftsman”

* 19: “unemployed”

* 20: “writer”