http://www.j-pop.ne.jp/yearly/2003/single1.htm for singles
http://www.j-pop.ne.jp/yearly/2003/album1.htm for albums
these rankings take place from 1-1-2003~11-30-03 and rank the top 100 jpop singles/albums
Ayu's rankings for singles:
8) & - 614,500
16) No way to say - 323,400 (and going strong ^.^)
28) forgiveness - 251,200
Ayu's ranking for albums:
6) A BALLADS - 907,300
17) RAINBOW - 511,100 (even though the album was released 12/18/02 I think this is how much the album sold in 2003)