According to Rhino, INTROSPECTIVE by PET SHOP BOYS has sold 4,500,000 copies worldwide. The album sold best in United Kingdom (600,000 copies), United States (500,000 copies) and Germany (250,000 copies).
INTROSPECTIVE certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Canada |
100,000 | 1x Platinum | 1999 |
Canada Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1999
|
 Finland |
32,840 | IFPI Finland |
Finland Sales: 32,840
Certification / note: IFPI Finland
Certification Date / sales as of:
|
|
 Germany |
250,000 | 1x Gold | 1988 |
Germany Sales: 250,000
Certification / note: 1x Gold
Certification Date / sales as of: 1988
|
 Japan |
66,030 | Oricon charts |
Japan Sales: 66,030
Certification / note: Oricon charts
Certification Date / sales as of:
|
|
 Spain |
100,000 | 1x Platinum | 1988 |
Spain Sales: 100,000
Certification / note: 1x Platinum
Certification Date / sales as of: 1988
|
 Sweden |
50,000 | 1x Gold | 8 December, 1988 |
Sweden Sales: 50,000
Certification / note: 1x Gold
Certification Date / sales as of: 8 December, 1988
|
 Switzerland |
25,000 | 1x Gold | 1998 |
Switzerland Sales: 25,000
Certification / note: 1x Gold
Certification Date / sales as of: 1998
|
 United Kingdom |
600,000 | 2x Platinum | 9 January,1989 |
United Kingdom Sales: 600,000
Certification / note: 2x Platinum
Certification Date / sales as of: 9 January,1989
|
 United States |
500,000 | 1x Gold | 22 December, 1988 |
United States Sales: 500,000
Certification / note: 1x Gold
Certification Date / sales as of: 22 December, 1988
|
| Worldwide sales | 4,500,000 | Rhino |
Total
Sales: 4,500,000
Source: Rhino
|