*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005686691
Feb012151301518
Mar3853600547
Apr6757400587
May68001169001975
Jun1743753110007502
Jul1224962541005049
Aug6161166001188
Sep3455800565
Oct4042400428
Nov0031900319
Dec001290658787
Total577707107416164520156