|
| 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | Total | Mean | Standard deviation | Variable coefficient |
| sale + 2 | 0.40 | 0.02 | 9.60 | 0.38 | 0.02 | 9.60 | 9.98 | 10.00 | 10.00 | 10.00 | 60.00 | 6.00 | 4.99 | 0.83 |
| sale + 1 | 4.80 | 0.19 | 9.00 | 0.97 | 0.04 | 9.00 | 9.00 | 9.00 | 9.00 | 9.00 | 60.00 | 6.00 | 4.08 | 0.68 |
| Begin | 8.00 | 1.92 | 8.00 | 2.00 | 0.08 | 8.00 | 8.00 | 8.00 | 8.00 | 8.00 | 60.00 | 6.00 | 3.26 | 0.54 |