Table 3 Actual and predicted crude oil...

Table 3

Actual and predicted crude oil prices Unit: USD/per barrel

	Actual price	Grey forecast	Hybrid grey forecast	Multiplicative decomposition	Trigono-metric model	Seasonal dummy regression	ARIMA (2,2,0)
1	51.43	39.86	56.53	61.64	59.40	62.70	52.37
2	54.91	47.32	64.30	60.64	63.65	63.11	51.77
3	58.10	57.91	66.41	62.72	66.18	63.44	51.15
4	63.81	61.80	64.30	65.94	65.01	67.15	54.39
5	60.78	68.44	69.30	68.83	62.26	70.04	55.81
6	54.61	63.55	69.51	67.06	62.09	69.19	53.46
7	57.33	51.15	60.47	66.10	66.23	67.29	56.51
8	54.76	54.11	63.90	62.64	71.80	64.80	55.90
9	56.90	55.71	66.87	64.82	73.85	66.55	58.29
10	53.91	55.89	65.99	68.22	70.29	68.51	59.74
11	56.92	54.35	70.95	66.68	64.32	64.29	54.30
12	59.77	55.93	64.10	67.34	61.52	62.90	50.82

	Actual price	Grey forecast	Hybrid grey forecast	Multiplicative decomposition	Trigono-metric model	Seasonal dummy regression	ARIMA (2,2,0)
1	51.43	39.86	56.53	61.64	59.40	62.70	52.37
2	54.91	47.32	64.30	60.64	63.65	63.11	51.77
3	58.10	57.91	66.41	62.72	66.18	63.44	51.15
4	63.81	61.80	64.30	65.94	65.01	67.15	54.39
5	60.78	68.44	69.30	68.83	62.26	70.04	55.81
6	54.61	63.55	69.51	67.06	62.09	69.19	53.46
7	57.33	51.15	60.47	66.10	66.23	67.29	56.51
8	54.76	54.11	63.90	62.64	71.80	64.80	55.90
9	56.90	55.71	66.87	64.82	73.85	66.55	58.29
10	53.91	55.89	65.99	68.22	70.29	68.51	59.74
11	56.92	54.35	70.95	66.68	64.32	64.29	54.30
12	59.77	55.93	64.10	67.34	61.52	62.90	50.82