I have created a new map for Y-haplogroup I2a1 (P37.2), including I2a1a (M26) and I2a1b (M423). Data is still sparse or unreliable for Bulgaria, Romania and the Middle East. For instance some studies give a very unreasonable 1% of I2a in Bulgaria while others go over 40%.
The problem in the Middle East is that few studies distinguish subclades of I. There shouldn't be any significant number of I1 or I2b beyond Western Anatolia, but that doesn't mean that all I is I2a. There could be I* and I2*. I had choice but resort to some guesswork. A study on Kurdistan gave 33% of hg I for the Zazaki Turks of eastern Anatolia. I doubt that all of it is I2a, but it's possible considering the high percentage of R1a (26%) and the fact that they are Indo-European speakers.