*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000811021110
Feb062774377664
Mar0581185001243
Apr01331953002086
May34524358004885
Jun269097413009536
Jul3520072810004852
Aug14301283001327
Sep1795600964
Oct0167800679
Nov0043100431
Dec00275514411721
Total79158631061917292029498