*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0002331633186
Feb231010511202140
Mar6303467003503
Apr181185485005621
May1193358301008755
Jun2984506897007645
Jul293432125002461
Aug62102063002135
Sep891831001848
Oct011729001730
Nov011500001501
Dec00683525713259
Total80610003509133685443784