Table 2 Results of the historical check of the model.
From: Modelling and evaluating wood supply chain resilience factors based on system dynamics
Index | GDP (CNY Billion) | Wood Supply Capacity (Ten Thousand Tons) | Volume of Customers (Ten Thousand Persons) | ||||||
|---|---|---|---|---|---|---|---|---|---|
Year | Real Value | Simulated Value | Error(%) | Real Value | Simulated Value | Error(%) | Real Value | Simulated Value | Error (%) |
2012 | 1101.5 | 1050.4 | 4.6 | 65,231 | 62,612 | − 4.0 | 3724 | 3778 | 1.5 |
2013 | 1184.9 | 1092.1 | 7.8 | 61,094 | 60,402 | − 1.1 | 3666 | 3724 | 1.6 |
2014 | 1217.0 | 1135.6 | 6.7 | 60,213 | 58,499 | − 2.8 | 3608 | 3670 | 1.7 |
2015 | 1169.0 | 1180.7 | − 1.0 | 54,478 | 56,887 | 4.4 | 3529 | 3617 | 2.5 |
2016 | 1189.5 | 1227.7 | − 3.2 | 53,569 | 55,550 | 3.7 | 3463 | 3564 | 2.9 |
2017 | 1231.3 | 1276.5 | − 3.7 | 56,398 | 54,473 | − 3.4 | 3399 | 3513 | 3.3 |
2018 | 1284.6 | 1327.3 | − 3.3 | 55,190 | 53,646 | − 2.8 | 3327 | 3462 | 4.1 |
2019 | 1354.4 | 1380.1 | − 1.9 | 50,475 | 53,056 | 5.1 | 3255 | 3412 | 4.8 |
2020 | 1363.3 | 1435.0 | − 5.3 | 48,662 | 52,694 | 8.3 | 3171 | 3362 | 6.0 |
2021 | 1485.8 | 1492.0 | − 0.4 | 55,116 | 52,551 | − 4.7 | 3125 | 3314 | 6.0 |
