Using the Grey Model to Analyze the Impact of the Primary, Secondary, and Tertiary Industries on the Public’s Attention to Air Pollution in Three Cities

Table 3

The results of three models under the different industries influence.

Year	Industry added value (billion yuan)
	Primary industry			Secondary industry			Tertiary industry
	FGMC	GMC	DGM	FGMC	GMC	DGM	FGMC	GMC	DGM
2014	1051.0	1051.0	1051.0	1051.0	1051.0	1051.0	1051.0	1051.0	1051.0
2015	1087.1	1143.4	1138.2	1114.9	1108.4	1137.1	1128.7	1196.3	1163.9
2016	1237.4	1275.3	1293.0	1171.0	1233.2	1274.8	1256.1	1263.4	1252.2
2017	1435.7	1385.5	1407.9	1393.3	1359.6	1435.9	1361.9	1337.0	1386.9
2018	1473.8	1435.2	1419.2	1473.1	1427.6	1431.3	1411.3	1417.2	1469.6
2019	1416.0	1451.2	1454.1	1348.8	1421.0	1427.4	1423.1	1500.0	1445.8
MAPE	3.99%	5.20%	5.49%	3.91%	5.08%	4.47%	5.32%	5.62%	4.11%