3-4 NUMBER OF COUNTIES GROUPED BY POPULATION |
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| (year-end) | ||||||||||
| Grouped By Population | Number of Counties | Population (10 000 persons) | ||||||||
| 1995 | 1996 | 1997 | 1998 | 1999 | 1995 | 1996 | 1997 | 1998 | 1999 | |
| Sichan | 177 | 179 | 179 | 180 | 180 | 8 161.2 | 8 215.4 | 8 264.7 | 8 315.7 | 8 358.6 |
| below 100 000 persons | 31 | 31 | 31 | 30 | 30 | 154.5 | 156.0 | 157.0 | 148.0 | 148.5 |
| 100 000-200 000 persons | 28 | 26 | 26 | 27 | 27 | 422.9 | 386.2 | 389.0 | 402.1 | 404.9 |
| 200 000-300 000 persons | 15 | 18 | 16 | 15 | 14 | 378.1 | 445.6 | 388.4 | 360.6 | 331.5 |
| 300 000-500 000 persons | 38 | 36 | 37 | 37 | 37 | 1 528.1 | 1 445.1 | 1 464.9 | 1 454.7 | 1 442.9 |
| 500 000-800 000 persons | 30 | 35 | 35 | 38 | 39 | 1 850.8 | 2 167.4 | 2 153.1 | 2 346.3 | 2 411.2 |
| 800 000-1 million persons | 15 | 13 | 14 | 14 | 14 | 1 316.1 | 1 133.8 | 1 216.8 | 1 222.3 | 1 225.4 |
| over 1 million persons | 20 | 20 | 20 | 19 | 19 | 2 510.7 | 2 481.3 | 2 495.5 | 2 381.7 | 2 394.2 |