*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000033
Feb00210324
Mar8541437001499
Apr171092416002542
May863652414004152
Jun1946793475007462
Jul13011481915003193
Aug33121027001072
Sep321110001115
Oct0044700447
Nov00160016
Dec00101011
Total47111770927901621536