*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan0001129130
Feb005204092
Mar01816200180
Apr116035400515
May264554700618
Jun177575300845
Jul92230100332
Aug3112100125
Sep00740074
Oct00650065
Nov00740074
Dec00531250304
Total56321255624193354