*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005828833
Feb122323259497
Mar0958100590
Apr2331023001058
May16471373001436
Jun29581044001131
Jul711356000644
Aug69658200657
Sep40657400620
Oct9249800509
Nov1238500388
Dec001921732925
Total2381787044918199288