*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00026382408
Feb202254158389
Mar682092002106
Apr2223383003407
May91472599002755
Jun451791881002105
Jul621452500601
Aug18257900599
Sep101052001053
Oct001332001332
Nov0089200892
Dec001977484688
Total1453721475737102416335