*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0003213216
Feb0061041102
Mar11061317001424
Apr153762177002568
May614188803005052
Jun13953812747008267
Jul693902558003017
Aug13191441001473
Sep2494200948
Oct1030200303
Nov00950095
Dec00671551619
Total3011046412510480524084