*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00015788803
Feb001661174341
Mar0435500359
Apr4966900682
May51031258001294
Jun81142444001594
Jul7651090001162
Aug7191273001299
Sep271050001059
Oct1254600549
Nov0036200362
Dec00176111071284
Total342279638917206910788