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| year | product |
|---|---|
| 2018 | product2018A |
| 2018 | product2018B |
| 2019 | product2018A |
| 2019 | product2018B |
| 2019 | product2019 |
| 2020 | product2018A |
| 2020 | product2018B |
| 2020 | product2019 |
| 2020 | product2020A |
| 2020 | product2020B |