| Specifications | 1 | 2 | 3 | 4 | 5 | 6 |
| Constant | −0.2117 (0.16) | −0.1222 (0.39) | −0.1828 (0.12) | −0.0419 (0.29) | −0.2122 (0.15) | −0.1251 (0.38) |
| Csales | −0.0170 (0.30) |
|
|
| −0.0177 (0.24) |
|
| Cmve |
| −0.0135 (0.34) |
|
|
| −0.0100 (0.43) |
| Vsales | −0.0170 (0.10)* |
| −0.0169 (0.09)* |
|
|
|
| Vmve |
| −0.0117 ((0.32) |
| −0.0098 (0.37) |
|
|
| Annual Contract Size | 0.0155 (0.33) | 0.0204 (0.21) |
|
|
|
|
| CRDSCGS |
|
| 0.0141 (0.28) |
|
|
|
| CRDSMVE |
|
|
| 0.0158 (0.22) |
|
|
| VRDSSales |
|
|
|
| 0.0168 (0.10)* |
|
| VRDSMVE |
|
|
|
|
| 0.0134 (0.24) |
|
| 0.0597 | 0.0494 | 0.0578 | 0.0488 | 0.0495 | 0.0572 |