Mathematical Problems in Engineering

Research Article

Research on the Degree of Coupling between the Urban Public Infrastructure System and the Urban Economic, Social, and Environmental System: A Case Study in Beijing, China

Table 4

The standardized data of urban economic social and environmental system.


Year	Gross regional product actual value S₁₁	The proportion of the tertiary industries S₁₂	Actual use of foreign investment amount S₁₃	Fixed assets investment ratio S₁₄	Per capita household disposable income S₂₁	Per capita consumption expenditure S₂₂	Number of employees in three industries S₂₃	Urbanization rate S₂₄	Annual average inhalable particles S₃₁	Total wastewater discharge S₃₂	General industrial solid waste production volume S₃₃	Sulfur dioxide emissions S₃₄

2000	0.0000	0.2210	0.0000	0.7978	0.0000	0.0000	0.0000	0.0000	0.9459	0.0000	0.7017	1.0000
2001	0.0674	0.2918	0.0035	0.8216	0.0262	0.0144	0.0160	0.0574	0.9865	0.0044	0.6976	0.8959
2002	0.1294	0.3938	0.0195	0.8978	0.0451	0.0602	0.0997	0.1127	1.0000	0.0532	0.5834	0.8572
2003	0.1952	0.1303	0.0343	1.0000	0.0753	0.0884	0.1398	0.1680	0.6622	0.0555	0.7664	0.8161
2004	0.2817	0.0000	0.1175	0.8840	0.1127	0.1245	0.3908	0.2219	0.7703	0.1116	0.9274	0.0000
2005	0.3315	0.3173	0.1567	0.7514	0.1556	0.1596	0.4306	0.6778	0.6757	0.1498	0.8256	0.8511
2006	0.3833	0.4023	0.2482	0.8470	0.2052	0.2127	0.5000	0.7574	0.9324	0.2016	1.0000	0.7837
2007	0.4862	0.3598	0.2934	0.7235	0.2480	0.2297	0.5383	0.7757	0.7568	0.2383	0.8886	0.6771
2008	0.5498	1.0000	0.2478	0.1641	0.3063	0.2677	0.6019	0.8205	0.4054	0.3091	0.7260	0.5501
2009	0.5350	0.3088	0.2934	0.6932	0.3492	0.3158	0.6308	0.8322	0.3919	0.6672	0.8442	0.5303
2010	0.6347	0.0992	0.3835	0.5891	0.3990	0.3844	0.6863	0.9384	0.3919	0.6100	0.8805	0.5136
2011	0.7641	0.5099	0.4086	0.3365	0.4806	0.4533	0.7497	0.9691	0.2973	0.7277	0.6832	0.4370
2012	0.8096	0.4136	0.4698	0.3146	0.5566	0.5226	0.8123	0.9652	0.2297	0.6602	0.6536	0.4190
2013	0.8707	0.3739	0.5575	0.2521	0.6387	0.5974	0.8683	0.9767	0.2162	0.7161	0.5711	0.3884
2014	0.8795	0.4561	0.6461	0.2460	0.7152	0.6557	0.8945	0.9878	0.3243	0.7959	0.5390	0.3519
2015	0.9002	0.7932	0.9971	0.1736	0.9059	0.9458	0.9434	1.0000	0.1351	0.8091	0.1111	0.3175
2016	1.0000	0.5694	1.0000	0.0000	1.0000	1.0000	1.0000	0.9991	0.0000	1.0000	0.0000	0.1482