JOY by SHIZUKA KUDO (工藤 静香) has sold 400,000 copies in Japan.
JOY certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Japan |
400,000 | 1x Platinum | April 1989 |
Japan Sales: 400,000
Certification / note: 1x Platinum
Certification Date / sales as of: April 1989
|
| Total sales | 400,000 | (in 1 country) |
Total
Sales: 400,000
(in 1 country)
|
Year-end chart performance for JOY
| Chart 1989 | Rank | Sales |
| Japanese Albums (Oricon) |
24 | 364,800 |