*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001206207
Feb00115093208
Mar151585001591
Apr3181496001517
May33791550001662
Jun431331303001479
Jul32820900249
Aug6225500263
Sep0131900320
Oct0034100341
Nov0024000240
Dec00830425508
Total118246749617248585