*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00005656
Feb002202345
Mar6042200428
Apr3302885002918
May251563371003552
Jun711272127002325
Jul54634700407
Aug10258500597
Sep0147600477
Oct0041700417
Nov0021800218
Dec00251127153
Total16932210895120611593