| Median number of members | In organizations that do not unite natural persons, the number of members of collective bodies was taken into account |
| Volunteers - the median members of our volunteer | In organizations that do not unite natural persons, the number of members of collective bodies was taken into account, median calculated only for organizations that showed a given category of people working socially |
| Volunteers - volunteers median non-members | median calculated only for organizations that showed a given category of people working socially |
| Volunteers - the median of all social workers | median calculated only for organizations that showed a given category of people working socially |