*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00026858884
Feb011801173355
Mar02338900412
Apr58866900762
May51178240001423
Jun91209440001658
Jul7651142001214
Aug8181327001353
Sep271081001090
Oct1257100574
Nov0037000370
Dec00173111051279
Total372591658228213611374