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Number of provinces and cities with different coupling coordination levels in China, 2009–2019 (unit).
| Classification | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Good coordinated | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 0 |
| Moderately coordinated | 2 | 3 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 1 | 2 |
| Primary coordination | 2 | 3 | 2 | 2 | 2 | 3 | 2 | 2 | 2 | 2 | 3 |
| Barely coordinated | 7 | 6 | 7 | 7 | 7 | 4 | 5 | 4 | 6 | 3 | 8 |
| On the verge of maladjustment | 10 | 10 | 9 | 8 | 8 | 10 | 10 | 11 | 8 | 12 | 7 |
| Slightly maladjusted | 6 | 8 | 8 | 9 | 9 | 9 | 9 | 7 | 9 | 9 | 8 |
| Moderately maladjusted | 2 | 0 | 1 | 1 | 1 | 3 | 1 | 3 | 2 | 3 | 2 |
