Tourism Demand Forecasting Based on Grey Model and BP Neural Network

Table 2

Sample selection table.

	Year	Highway mileage	Number of people served	Per capita disposable	Tourism income	Forecast results	Number of tourists
Training sample	2010	116.81	169.91	4394	1476.8	6.32	6.33
	2011	119.69	180.38	4849.8	1649.5	6.21	6.51
	2012	123.75	185.43	5261.4	2123.8	6.64	6.45
	2013	128.96	189.7	5426.2	2492.3	6.81	6.96
	2014	135.28	193.16	5865	2842.8	8.15	8.28
	2015	141.38	199.34	6281.2	3186.6	7.39	7.45
	2016	170.92	212.76	6860.2	3523.5	8.25	7.95
	2017	177.63	210.69	7713.9	3889.5	8.82	8.89
	2018	181.89	217.16	8573.3	3453.4	9.76	9.94
	2019	188.18	238.36	9522.7	4721.8	12.39	12.13
	2020	345.63	245.48	11842.5	5386.9	13.52	13.85
Test sample	1	374.13	251.98	15781.9	8750.4	18.45	18.23
	2	387.19	259.68	17185.8	10194.7	19.27	19.13
	3	400.93	264.43	19218.5	12580.9	18.78	21.14