Preliminary results of the Finnish basic income experiment: self-perceived wellbeing improved, during the first year the employment level has been similar to control group (which has been subject to conditional social security)(epressi.com)
You can find the study here(in English)
http://julkaisut.valtioneuvosto.fi/bitstream/handle/10024/161361/Report_The%20Basic%20Income%20Experiment%2020172018%20in%20Finland.pdf?sequence=1&isAllowed=y
I had really hoped that the employment level would have increased, but perhaps that will come. Still a few years left in the experiment.