*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000033
Feb00220325
Mar8541429001491
Apr171092413002539
May863652400004138
Jun1946774453007421
Jul13011251918003173
Aug33121027001072
Sep321111001116
Oct0045200452
Nov00160016
Dec00101011
Total47111728924201621457