*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001169170
Feb00110064174
Mar151420001426
Apr3181267001288
May33751315001423
Jun421311100001273
Jul31818900228
Aug5220200209
Sep0125500256
Oct0028300283
Nov0018000180
Dec00690382451
Total115240639016157361