25.0
33.3
Cellular phone
---
10.5
Compute
---
4.5
Car (not for work)
5.0
6.0
Socioeconomic index3 (without cellular phone and computer)
Average
10.7
6.0
Mode
9.9
4.1
Median
9.6
4.1
Socioeconomic index4 (with cellular phone and computer)
Average
---
8.0
Mode
---
4.1
Median
---
4.1
1 All resume measurements were calculated using gross values of variables.
2 Not referred to percent distribution, but to the percent that answered affirmatively of the totality of interviewed.
3 To calculate (I) index it was applied the formula I = x
-1
i Pi , where xi is a
dichotomy variable meaning the ownership or not of appliance ―i‖ and Pi is the percentage of ownership of each appliance. For the year 1997, the minimum value of index is 0.0 and the maximum is 37. At 2000, the respective values are 0.0 and 28.3
4 The minimum value of index is 0.0 and the maximum is 60.0
125
TABLE 5
COSTA RICA: COMMERCIAL SEX WORKERS, SOCIOECONOMIC