SI: by TSUYOSHI DOMOTO (堂本 剛) has sold 100,000 copies in Japan.
SI: certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
100,000 | 1x Gold | August 2004 |
Japan Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: August 2004
|
| Total sales | 100,000 | (in 1 country) |
Total
Sales: 100,000
(in 1 country)
|
Year-end chart performance for SI:
| Chart 2004 | Rank | Sales |
| Japanese Albums (Oricon) |
70 | 211,454 |