Number of factories

1,436
1,429
1,421
1,414
1,406
1,399
1,392
1,384
1,377
1,369
1,362













































































































































































































































































13141516171819202122

The X-axis in the diagram shows:  Days
The Y-axis in the diagram shows:  Number of factories
 X:    13  14  15  16  17 
 Y:    1,362   1,383  1,411  1,395  1,406 
 X:    18  19  20  21   22 
 Y:    1,419  1,411  1,419  1,436  1,431