*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0009257935885
Feb1719442218253799
Mar10273787003824
Apr19373753003809
May583925827006277
Jun10524246316008845
Jul394553187003681
Aug292027002038
Sep0102588002598
Oct012745002746
Nov002105002105
Dec011080632834370
Total2343363353591201090149977