*Excludes Observations that span multiple months

  B
b
t
W
w
 
Jan00003636
Feb002401236
Mar03223500267
Apr11822700246
May66023900647
Jun9287870002957
Jul61315542001863
Aug8212700137
Sep00890089
Oct01760077
Nov00370037
Dec00906372
Total304848147501116464