A Predictive Analysis of the Business Environment of Economies along the Belt and Road Using the Fractional-Order Grey Model

Table 2

Actual values and predicted values (an example of Poland).

Time	Actual value	r = 0.1	r = 0.2	r = 0.3	r = 0.4	r = 0.5	r = 0.6	r = 0.7	r = 0.8	r = 0.9	r = 1
2014	73.60	73.60	73.60	73.60	73.60	73.60	73.60	73.60	73.60	73.60	73.60
2015	74.10	74.63	74.29	73.99	73.77	73.65	73.66	73.82	74.15	74.67	75.40
2016	76.90	76.22	76.43	76.62	76.79	76.92	76.98	76.95	76.81	76.52	76.04
2017	77.70	77.08	77.46	77.78	78.02	78.16	78.17	78.05	77.77	77.32	76.69
2018	77.90	77.35	77.53	77.69	77.81	77.87	77.87	77.81	77.70	77.54	77.35
2019	76.90	77.21	76.98	76.79	76.66	76.59	76.61	76.73	76.98	77.40	78.01