| Models | MSE | MAE | WMAPE (%) | DC |
| Linear | 0.0090 (0.0041) | 0.0821 (0.0550) | 0.0035 (0.0029) | 0.9720 (0.9530) |
| Quadratic | 0.0085 (0.0010) | 0.0801 (0.0265) | 0.0034 (0.0014) | 0.9737 (0.9884) |
| Third-order | 6.7 * 10−5 (8.9 * 10−5) | 0.0067 (0.0079) | 2.90 * 10−4 (4.1 * 10−4) | 0.9998 (0.9990) |
| Fourth-order | 4.2 * 10−5 (7 * 10−5) | 0.0057 (0.0022) | 2.44 * 10−5 (1.2 * 10−4) | 0.9999 (0.9999) |