About 80% of Ukraine's general population speaks Russia 2 5, 5:43am

@Karen
The list is as follows:

I. Belarus - 78%
II. Ukraine - 70%
III. Kazakhstan - 67%
IV. Latvia - 59%
V. Moldavia - 51%
VI. Estonia - 39%
VII. Kyrgyzstan - 38%
VIII. Tajikistan - 35%
IX. Armenia - 33%
X. Georgia - 30%
XI. Azerbaijan - 28%
XII. Lithuania - 24%

Although the page does say that the graph does not show the percentage that can speak Russian, rather the percentage of people who feel they can speak it.