*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00028688
Feb013312964
Mar05600065
Apr012710083
May42149200310
Jun2750430000831
Jul5116858000799
Aug103621900265
Sep0114200143
Oct00890089
Nov00700070
Dec00150133148
Total92941167132482955