50
100
150
200
250
300
350
400
450
500
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
50
100
150
200
250
300
350
400
450
500
50
100
150
200
250
-30
-20
-10
Now
+10
+20
Jan
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50
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Jan