*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001309310
Feb0167084152
Mar01016200172
Apr13823700276
May3156852001623
Jun44680108004792
Jul111761880002652
Aug11947300493
Sep2544600453
Oct1136900371
Nov0022400224
Dec00940531625
Total3380733112192412143