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| month | Count |
|---|---|
| January | 3 |
| February | 1 |
| March | 1 |
| April | 1 |
| May | 0 |
| June | 0 |
| July | 0 |
| August | 0 |
| September | 0 |
| October | 0 |
| November | 0 |
| December | 0 |
Warning: Null value is eliminated by an aggregate or other SET operation.