| Value | Category | Cases | |
|---|---|---|---|
| 1 | Only this year's production | 436 |
47.1%
|
| 2 | Only previous year's production | 126 |
13.6%
|
| 3 | Mainly this year's production | 317 |
34.2%
|
| 4 | Mainly last year's production | 47 |
5.1%
|