First Love is the #1 selling album in Oricon's Heisei Ranking, selling 7,672,000 copies.
Additionally, Distance is #4 (4,472,000) and Deep River is #8 (3,605,000)
She is #10 in the best selling artist list with 37,340,000 total copies sold.
[singles: 15,525,000 copies / albums 21,815,000]
Top single: Automatic/Time Will Tell 2,063,000
Top album:First Love 7,672,000
Top 3 Ranking:
Single
*I'm confused because on the previous page it lists Automatic and here it lists Addicted to You!
Addicted to You
Wait & See
Can You Keep A Secret?
Album
First Love
Distance
Deep River
DVD
BOHEMIAN SUMMER 2000
traveling
UTADA HIKARU SINGLE CLIP COLLECTION + VOL.3
Blu-ray
WILD LIFE
Destiny: The Tale of Kamakura
Penguin Highway
I guess she doesn't have enough Blu-ray releases so they included movies she's done the themes for.
Full product ranking:
https://www.oricon.co.jp/prof/193854/rank/
Top artist article:
https://www.oricon.co.jp/news/2133352/
edit: changed the numbers because the converter i originally used sucked