Understanding Society User Support

Hello,

Please is there a further breakdown of the countries of origin of immigrants (plbornc)? I am conducting a study on the EU accession 8 countries and it appears that only Poland is part of the countries explicitly labeled (10). I believe the other Eastern European countries are embedded in "others" 97. Is there any chance that you have a further breakdown of these so I can identify other Eastern European countries?

Also, what is the date of the release of Wave 9?

Thank you in anticipation of your response.

Ps:
In addition to the previous, I have tried to use "plboth" but I cannot locate it on any of the datasets.