Number of factories

891
885
879
874
868
862
856
850
845
839
833













































































































































































































































































567891011121314

The X-axis in the diagram shows:  Days
The Y-axis in the diagram shows:  Number of factories
 X:    5  6  7  8  9 
 Y:    833   836  846  853  858 
 X:    10  11  12  13   14 
 Y:    865  871  876  888  891