*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0008372380
Feb001061153260
Mar01330000313
Apr4242946001192
May3554731297006805
Jun56834373220015721
Jul429424479005463
Aug13352393002441
Sep121199001202
Oct0019200192
Nov00980098
Dec00641498563
Total151150501839610102334630