A Novel Optimized Nonlinear Grey Bernoulli Model for Forecasting China’s GDP

Table 6

Results of simulation and prediction from the five grey models.

Year	Actual data	M1	M2	M3	M4	New model
2012	53.85
2013	59.30	59.306	59.316	59.283	59.280	59.280
2014	64.12	63.914	63.924	64.026	64.032	64.032
2015	68.59	68.753	68.764	68.890	68.906	68.906
2016	74.01	73.893	73.904	73.994	74.021	74.021
2017	82.07	79.376	79.388	79.393	79.433	79.433 (1st rolling)
2018	90.03	85.237	85.250	85.128	85.183	90.571 (2nd rolling)