*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000033
Feb00210324
Mar8541435001497
Apr171092410002536
May863652411004149
Jun1946793472007459
Jul13011481915003193
Aug33121027001072
Sep321110001115
Oct0044700447
Nov00160016
Dec00101011
Total47111770926501621522