Number of factories

2,349
2,329
2,310
2,290
2,270
2,251
2,231
2,211
2,191
2,172
2,152













































































































































































































































































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The X-axis in the diagram shows:  Days
The Y-axis in the diagram shows:  Number of factories
 X:    2  3  4  5  6 
 Y:    2,152   2,210  2,221  2,250  2,266 
 X:    7  8  9  10   11 
 Y:    2,297  2,317  2,349  2,343  2,335