Number of factories

2,301
2,272
2,242
2,213
2,183
2,154
2,125
2,095
2,066
2,036
2,007













































































































































































































































































31123456789

The X-axis in the diagram shows:  Days
The Y-axis in the diagram shows:  Number of factories
 X:    31  1  2  3  4 
 Y:    2,007   2,040  2,100  2,134  2,172 
 X:    5  6  7  8   9 
 Y:    2,210  2,240  2,267  2,288  2,301