The tail end of the annual holiday sales boost helped keep Broadway B.O. relatively robust last week, although the numbers still took a hit in the wake of the Christmas-week spike.Although almost every production on the boards saw sales decline — many by hundreds of thousands of dollars — there was still enough revenue coming in to the Main Stem to keep nine shows above the $1 million mark. “Wicked” ($2,106,339) and “The Lion King” ($2,017,921) both stayed above $2 million. Fall opener “Annie” ($1,252,683) continued to benefit from the tourists and family auds looking for all-ages entertainment, coming in just behind “The Book of Mormon” ($1,833,432) and “Spider-Man: Turn Off the Dark” (down more than $1 million to $1,636,789), while “Evita” ($1,091,836) hung in there in its final month on the boards. Perennial out-of-towner faves “Jersey Boys” ($1,112,848), “The Phantom of the Opera” ($1,052,613 for seven perfs) and “Mary Poppins” ($1,028,946) stayed strong as well. The variance in the numbers between last week and the prior frame was exacerbated by the fact that many shows played nine perfs during the Christmas sesh and last week played the usual eight (or, in some cases, seven), with cume also impacted by the prior closings of “A Christmas Story” and “Bring It On.” Last week five more shows joined those two in shuttering before the doldrums of January set in, with “War Horse” ($948,043) playing to near-capacity auds in its final week. “Elf” ($696,616) took a predictable tumble in the one week it was scheduled to play after the Christmas holiday, while “Chaplin” ($509,381), “Grace” ($418,788) and “Dead Accounts” ($254,255) bowed out with little B.O. fanfare. Overall Broadway sales came in at $24.5 million for 29 shows, down $12 million on the previous week.