The following table shows the number of centuries scored by cricketers in the past 5 years.
| Years → | 2021 | 2020 | 2019 | 2018 | 2017 |
| cricketers ↓ | |||||
| A | 1 | 0 | 2 | 1 | 1 |
| B | 1 | 2 | 0 | 0 | 1 |
| C | 0 | 0 | 1 | 1 | 0 |
| D | 0 | 1 | 1 | 0 | 1 |
| E | 1 | 0 | 1 | 0 | 1 |
In which year the maximum number of centuries were scored?
1
2020
2
2018
3
2019
4
2021