*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002432643288
Feb3514191114582896
Mar22454809004876
Apr176966101006373
May4971998583009279
Jun4391533831004423
Jul153262221002400
Aug931689001701
Sep431959001966
Oct001720001720
Nov001653001653
Dec00876127013578
Total13035303486136742344153