HOW OLD ARE YOU? by ROBIN GIBB has sold 0 copies on streaming services.
HOW OLD ARE YOU? certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of |
| Total sales | 0 | Album-equivalent unit |
Total
Sales: 0
Album-equivalent unit
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Year-end chart performance for HOW OLD ARE YOU?
| Chart 1983 | Rank |
 German Albums (Offizielle Top 100) |
31 |