*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00004343
Feb01130620
Mar00570057
Apr11389700911
May3651318001386
Jun1765966001048
Jul181150400533
Aug17234100360
Sep2038300385
Oct0046600466
Nov0016000160
Dec00320115147
Total58157513701645516