Understanding Society User Support

Dear Sir / Madam
Following the discussion on income at this User Support, it is a couple of times mentioned that net income is not available (yet) for wave 1.
The dataset indresp, however,contains a_fimnlabnet_dv (total monthly labour income - net) and a_fimnnet_dv ( total personal income - net). What are these variables - do I read the labels incorrectly?
Thank you
regards,
Peter