*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000033
Feb00220325
Mar8541424001486
Apr171092402002528
May863652388004126
Jun1936774445007412
Jul13011251917003172
Aug33121027001072
Sep321111001116
Oct0045200452
Nov00160016
Dec00101011
Total47011728920501621419