*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002332334
Feb00121199221
Mar0754600553
Apr0171354001371
May11081169001278
Jun55963000694
Jul27422900260
Aug5114700153
Sep1020700208
Oct0036700367
Nov0022600226
Dec00670260327
Total39196506336915992