*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002364366
Feb00113092205
Mar01044900459
Apr0191755001774
May61303258003394
Jun662202983003269
Jul922060700719
Aug22342100446
Sep1246800471
Oct0060000600
Nov0034900349
Dec001210471592
Total18740411124292712644