*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002533535
Feb001151158274
Mar0020400204
Apr0217100173
May31128172001303
Jun456566579007190
Jul4510814285005411
Aug40463863003949
Sep731678001688
Oct0141600417
Nov0021400214
Dec001240711835
Total1408827118213140222193