| Ave. yield | m3/ha | % >20 year | % >40 year | % >60 year | Reg III | Reg IV | Reg V | No. stands | |
| m3/ha | 0.455 0.000 | ||||||||
| % >20 year | −0.020 0.704 | 0.531 0.000 | |||||||
| % >40 year | −0.103 0.053 | 0.602 0.000 | 0.632 0.000 | ||||||
| % >60 year | −0.215 0.000 | 0.479 0.000 | 0.424 0.000 | 0.728 0.000 | |||||
| Reg III | 0.016 0.759 | 0.021 0.694 | 0.042 0.434 | −0.141 0.008 | −0.231 0.000 | ||||
| Reg IV | −0.445 0.000 | −0.187 0.000 | −0.027 0.614 | 0.106 0.048 | 0.173 0.001 | −0.369 0.000 | |||
| Reg V | −0.417 0.000 | −0.256 0.000 | −0.013 0.803 | 0.040 0.449 | 0.095 0.074 | −0.259 0.000 | −0.230 0.000 | ||
| No. stands | −0.182 0.001 | −0.142 0.008 | −0.037 0.490 | −0.048 0.373 | 0.025 0.636 | −0.007 0.895 | 0.164 0.002 | 0.054 0.317 | |
| Prod. area | −0.164 0.002 | −0.149 0.005 | −0.043 0.423 | −0.096 0.072 | −0.024 0.648 | −0.190 0.000 | 0.078 0.145 | 0.178 0.001 | 0.206 0.000 |