Multimodal Transport System Coevolution Model Based on Synergetic Theory

Table 4

Container freight volumes of subsystems and social system.

Year	Container freight volumes (million tons)
	Railway	Road	Water	Aviation	Social
1999	0.38	1.09	0.89	0.02	2.39
2000	0.45	1.29	1.10	0.02	2.86
2001	0.47	1.55	1.24	0.02	3.28
2002	0.59	1.68	1.50	0.02	3.80
2003	0.60	2.37	1.59	0.03	4.58
2004	0.56	2.76	2.20	0.03	5.55
2005	0.65	3.67	2.58	0.03	6.93
2006	0.71	5.32	3.34	0.04	9.41
2007	0.67	7.14	5.48	0.04	13.33
2008	0.69	5.96	3.46	0.04	10.16
2009	0.82	6.63	4.23	0.06	11.74
2010	0.92	7.44	5.18	0.06	13.80
2011	0.91	8.27	5.48	0.05	14.71
2012	0.38	1.09	0.89	0.02	2.39