*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0015335341
Feb00954125224
Mar05181213005394
Apr5967388001360
May1135631000677
Jun3842740400869
Jul374524100323
Aug10926200281
Sep2328800293
Oct0526000265
Nov0221600218
Dec00710474545
Total10369952749993410790