*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan012718553599
Feb252696240522
Mar512763400712
Apr22810257500905
May1838349300759
Jun235136727001098
Jul21692922001230
Aug301444600490
Sep1443000435
Oct0046301464
Nov0016700167
Dec002372756995
Total94646453902615508376