Table 4.
Publication year vs. count.
| Year | Count |
|---|---|
| 2011 | 1 |
| 2012 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 4 |
| 2017 | 2 |
| 2018 | 3 |
| 2019 | 10 |
| 2020 | 15 |
| 2021 | 12 |
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