Impact of COVID-19 on Port Production and Operation Based on System Dynamics: A Case Study of Shanghai Port in China

Table 5

Comparison of simulation results and actual results of port throughput.

Year	Actual results	Simulation results	Relative error (%)
2011	72758	72758	0.0
2012	73559	74178	0.8
2013	77575	80489	3.8
2014	75529	77233	2.3
2015	71740	71454	0.4
2016	70177	69190	1.5
2017	75051	75626	0.8
2018	73048	72435	0.8
2019	72031	71595	0.6
2020	71670	69995	2.3