Number of factories
907
904
901
898
895
892
889
886
883
880
877
25
26
27
28
29
30
31
1
2
3
The X-axis in the diagram shows:
Days
The Y-axis in the diagram shows:
Number of factories
X:
25
26
27
28
29
Y:
877
879
891
893
898
X:
30
31
1
2
3
Y:
907
891
898
901
895