| 1990 | 2000 | 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Kyrgyzstan | 237 | 34 | 91 | 109 | 77 | 62 | 90 | 195 | 161 | 610 | 436 | 0 | 6 | 66 | 1,945 | ||
| Kazakhstan | 395 | 87 | 222 | 35 | 66 | 43 | 14 | 23 | 74 | 32 | 44 | 97 | 147 | 54 | 1 | 3 | 421 |
| Armenia | 469 | 10 | 6 | 4 | 1 | 8 | 30 | 85 | 27 | 15 | 77 | 160 | 39 | 12 | 6 | 1 | 50 |
| Belarus | 462 | 169 | 80 | 112 | 151 | 576 | 188 | 378 | 503 | 522 | 516 | 648 | 776 | 449 | 13 | 28 | 881 |
| Russian Federation | 24,960 | 29,983 | 4,644 | 4,795 | 4,733 | 7,220 | 4,510 | 4,705 | 6,452 | 8,232 | 5,411 | 10,423 | 14,407 | 6,069 | 1,108 | 3,186 | 52,783 |