*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001565566
Feb074581368834
Mar1611991002053
Apr11203704003825
May138047929008989
Jun821390311790015164
Jul7011133635004818
Aug3995400966
Sep0456300567
Oct0041000410
Nov0012000120
Dec00770640717
Total17023264140202157339029