sources:

• Я.Е. Водарский, О.И. Елисеева, В.М. Кабузан: “НАСЕЛЕНИЕ КРЫМА В КОНЦЕ XVIII — КОНЦЕ XX ВЕКОВ. (Численность, размещение, этнический состав).” Москва РАН 3003

(Ya.E. Vodarskiy, O.I. Yeliseyeva, V.M. Karabuzan: “Population of Crimea from End 18th-End 20th century. (Size, Location, Ethnic Composition)” Moscow Russian Academy of Science 2003.)

see e.g. chapters about 18th century-1897.

• Ukrainian census 2001 e.g.here or here
• (Data also compilated and referenced in chapter of Ukrainian Wikipedia-article about Crimean population "Ethnic Distribution of Crimea from End 18th– Beginning of 21st century.", the Graph:Chart is here)