*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00039319358
Feb001345104243
Mar6422100231
Apr14623500282
May91290357001656
Jun363321380003737
Jul271381281001689
Aug32025500278
Sep0526600271
Oct0018400184
Nov0014400144
Dec008999771075
Total826067254653140010148