In case it's of interest, I can give some Etihad figures for the last 14 months based on CAA stats. The first is the percentage change from the same month in the previous year and the second is the average load.
Not knowing the mix of B773 and A332, I have not attempted LFs.
Sep'15 +4% / 327
Oct'15 +7% / 302
Nov'15 +10% / 272
Dec'15 +16% / 310
Jan'16 +8% / 304
Feb'16 +7% / 317
Mar'16 +11% / 349
Apr'16 +16% / 314
May'16 +1% / 226
Jun'16 +13% / 245
Jul'16 +2% / 357
Aug'16 -3% / 360
Sep'16 -8% / 302
Oct'16 -13% / 261
In terms of pax numbers, the strongest months were March'16 with 43,305; July'16 had 44,253 and Aug'16 had 44,633.
The lowest were May'16 with 28,040 (quite normal for the ME3 I think) and June'16 with 29,411.
I'll leave others to ponder whether the reductions from August simply reflect more A332s or whether the reason for the A332 is because Etihad were seeing less demand for the afternoon flight and trimmed capacity accordingly.