Number of factories

2,529
2,504
2,480
2,455
2,430
2,406
2,381
2,356
2,331
2,307
2,282













































































































































































































































































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The X-axis in the diagram shows:  Days
The Y-axis in the diagram shows:  Number of factories
 X:    3  4  5  6  7 
 Y:    2,282   2,317  2,333  2,345  2,390 
 X:    8  9  10  11   12 
 Y:    2,432  2,451  2,491  2,504  2,529