| 1 | A | B | C | D | E | F |
| --- | --- | --- | --- | --- | --- | --- |
| 2 | City Nature Challenge - Results |  |  |  |  |  |
| 3 | Year | Cities participating | Total observations | Total species | Total participants | Results page |
| 4 | 2016 | 2 | 19,742 | 3,152 | 1,018 | - |
| 5 | 2017 | 16 | Over 125,000 | 8,600 | Over 4,000 | - |
| 6 | 2018 | 68 | 442,518 | Over 18,000 | 17,329 | - |

Question: How did City Nature Challenge perform in terms of expansion during the year 2017?
Answer: In 2017, City Nature Challenge expanded to 16 cities and the participants collected over 125,000 observations.