*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan000512121217
Feb003733425801
Mar110176600868
Apr44756500616
May131060978002051
Jun2229791371004372
Jul817171855003580
Aug1181991002010
Sep021516001518
Oct001080001080
Nov0064600646
Dec00271210741347
Total4959241141210271120106