I guess you better fix all the news articles and reports then, because everything I've seen says 80%. Wikipedia actually says 82% Russian going by language and 2% Ukrainian, with 20% saying they were Ukrainian by ethnicity.
Ukrainians are just "frontier Russians" anyway, despite the mythology some of them have adopted.
By that twisted logic, since virtually all Irishmen speak English, they are actually only "frontier Englishmen."
I specifically referenced my own personal experience in the year 2001 - which simultaneously comported well with the statistics available at the time.
I have no doubt that subsequent surveys and polls undertaken during the Russian occupation now point in a more Moscow-favorable direction. (Living under the cudgel of a foreign military force tends to color one's survey responses, after all.)
In the summer of 2001, I was a guest at a coastal military spa under Russian jurisdiction - and yet, with the exception of the higher-ranking sanatorium personnel, most everyone first addressed me in Ukrainian.
I will grant you that an informal poll I conducted indicated that, given a choice between full independence, belonging wholly to Ukraine, or belonging wholly to Russia, a slight majority expressed a preference for independence. (I'm not necessarily claiming that complete independence would have been an economically or geo-politically viable alternative - I'm just reporting what I was told.)
Regards,