*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0005828833
Feb122333261500
Mar0958300592
Apr2361037001075
May16481407001471
Jun29581069001156
Jul711356200646
Aug70658200658
Sep40657300619
Oct9249800509
Nov1238500388
Dec001921732925
Total2391827121918219372