I've got books filling my shelves, day and night...

Yesterday, from Barnes & Noble, I ordered three books.  They were Doctor Who books.  Each of the eleven Doctors have had books written about their adventures.  In honor of The Doctor's 50th Anniversary this November, they have repackaged one book for each Doctor and are selling them as a series.  I ordered the first three and plan on ordered all of them, except for the Eleventh Doctor's book, because I already have all, well most, of his.

At any rate, here's my yearly totals:

Jan 27: 4 books for $49.71, average $12.43 per book.
Jan 30: 4 books for $13.14, average $3.29 per book.
          Total: 8 books for $62.85, average $7.86 per book.
Feb 10: 9 books for $119.25, average $13.25 per book.
          Total: 17 books for $182.10, average $10.71 per book
Mar 03: 2 books for $26.78, avearge $13.39 per book
          Total: 19 books for $208.88, average $10.99 per book
Mar 17: 3 books for $9.97, average $3.32 per book
          Total: 22 books for $218.85, average $9.95 per book.
April 9: 4 books for $28.55, average $7.14 per book
          Total: 26 books for $247.40, average $9.52 per book.
April 15: 2 books for $35.97, average $17.99 per book.
          Total: 28 books for $283.37, average $10.12 per book.
April 28: 3 books for $10.47, average $3.49 per book.
          Total: 31 books for $293.84, average $9.48 per book.
May 18: 3 books for $15.47, average $5.16 per book.
          Total: 34 books for $309.31, average $9.10 per book.
June 10: 3 books for $35.85, average $11,95.
         Total: 37 books for $345.16, average $9.33 per book.

POLT