*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00039536575
Feb102139186409
Mar1186500867
Apr073389003396
May321263829003987
Jun1651692003002337
Jul148171254001419
Aug4871638001693
Sep311922001926
Oct112459002461
Nov001481001481
Dec0029214535841
Total3993291934562125721392