Forecast of Water Structure Based on GM (1, 1) of the Gray System

Table 6

The forecast of the water structure of the tertiary industry.

	2019	2020	2021	2022	2023	2024	2025	2026	2027	2028	2029	2030
First industry	0.6855	0.6732	0.6664	0.6596	0.6527	0.6459	0.6390	0.6321	0.6252	0.6183	0.6114	0.6045
Secondary industry	0.1132	0.1126	0.1115	0.1104	0.1093	0.1082	0.1071	0.1060	0.1048	0.1037	0.1026	0.1015
Tertiary industry	0.2103	0.2142	0.2221	0.2300	0.2380	0.2459	0.2539	0.2619	0.2699	0.2780	0.2860	0.2940