| Value | Category | Cases | |
|---|---|---|---|
| 1 | Only this year's production | 122 |
51.3%
|
| 2 | Only previous year's production | 40 |
16.8%
|
| 3 | Mainly this year's production | 75 |
31.5%
|
| 4 | Mainly last year's production | 1 |
0.4%
|