You will find the data in the owners handbook for the boat. Although the hulls are essentially the same I think you will find they have different keels and of course superstructure, both of which can have an effect on the AVS and therefore a small impact on the STIX. These differences are likely to be small.
There is a PDF of the 2011 36 in the manuals thread (in German) that gives the AVS as 121 and the STIX as 33. The latter seems rather low (although well above the minimum for CAT A) as my 2015 33 also has the same STIX but a higher AVS. As STIX is heavily weighted by overall size of boat I would expect the later 37 to be higher than that.
Hope this helps.