*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan1225000127
Feb240038062
Mar0001302132
Apr00127628305
May001045144505
Jun0035356101492
Jul003924814301
Aug002217610208
Sep0031694176
Oct00099099
Nov10073074
Dec58210480631
Total729611020642033112