Number of factories

2,451
2,436
2,420
2,405
2,389
2,374
2,359
2,343
2,328
2,312
2,297













































































































































































































































































16171819202122232425

The X-axis in the diagram shows:  Days
The Y-axis in the diagram shows:  Number of factories
 X:    16  17  18  19  20 
 Y:    2,297   2,321  2,305  2,337  2,370 
 X:    21  22  23  24   25 
 Y:    2,378  2,384  2,402  2,415  2,451