*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002331633186
Feb231010511182138
Mar6303467003503
Apr181185482005618
May1193358301008755
Jun2984506897007645
Jul293432125002461
Aug62102063002135
Sep891831001848
Oct011729001730
Nov011500001501
Dec00682525713258
Total80610003508733685243778