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Table 7.
Hirschman–Herfindahl index of subspecialists in Qazvin province
| City | Year | ||||||
|---|---|---|---|---|---|---|---|
| 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | |
| Hirschman index | 9334/12 | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 | 10,000 |