*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0004351355
Feb00971153251
Mar0427800282
Apr32293400959
May3247661244006042
Jun55804072700015365
Jul419424348005331
Aug13352291002339
Sep121184001187
Oct0018500185
Nov00930093
Dec00641498563
Total14513811179886100232952