| | Variable | Model | AIC |
| | AD | ARIMA (3,1,1) | −4453.01 | | ARIMA (4,1,1) | −4452.11 | | ARIMA (0,1,1) | −4456.04 |
| | C | ARIMA (2,1,1) | 3737 | | ARIMA (3,1,1) | 3737.85 | | ARIMA (0,1,1) | 3734.41 |
| | CL | ARIMA (3,1,1) | 1987.9 | | ARIMA (4,1,1) | 1989.6 | | ARIMA (0,1,2) | 1984.58 | | ARIMA (1,1,2) | 1985.91 |
| | ES | ARIMA (5,1,1) | 5134.99 | | ARIMA (7,1,1) | 5135.28 | | ARIMA (1,1,1) | 5130.34 | | ARIMA (2,1,1) | 5130.55 |
| | FC | ARIMA (2,1,1) | 2694.63 | | ARIMA (3,1,1) | 2696.58 | | ARIMA (0,1,1) | 2691.71 | | ARIMA (2,1,1) | 2694.63 |
| | GC | ARIMA (2,1,1) | 4631.41 | | ARIMA (4,1,1) | 4631.11 | | ARIMA (0,1,1) | 4629.98 | | ARIMA (2,1,2) | 4633.53 |
| | KC | ARIMA (3,1,1) | 2920.22 | | ARIMA (1,1,1) | 2919.97 | | ARIMA (1,1,0) | 2918.05 |
| | US | ARIMA (2,1,1) | 1774.47 | | ARIMA (6,1,1) | 1781.38 | | ARIMA (0,1,1) | 1770.78 |
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