*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002331623185
Feb231008511162134
Mar6303462003498
Apr181185482005618
May1193358301008755
Jun2984506897007645
Jul293432125002461
Aug62102062002134
Sep891830001847
Oct011729001730
Nov011500001501
Dec00679525703254
Total80610003507533684843762