*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0000101101
Feb001302235
Mar01370038
Apr1119400196
May41543300452
Jun246442800516
Jul301129100332
Aug12837600396
Sep1037100372
Oct0042800428
Nov0011300113
Dec00400181221
Total72100272403043200