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| Statistics | Barcelona | Madrid |
|---|---|---|
| Number of postcodes | 368 | 271 |
| Number of inhabitants | 5,540,925 | 6,489,680 |
| Area (km2) | 7,733 | 8,022 |
| Number of customers | 270,205 | 531,818 |
| Number of transactions | 13,077,178 | 24,920,896 |
| Number of businesses | 111,956 | 109,707 |
