SINCE I LEFT YOU by THE AVALANCHES has sold 170,000 copies in Australia and United Kingdom.
SINCE I LEFT YOU certifications and sales
| Country / region | Sales | Certification / source | Certification date / sales as of | |
 Australia |
70,000 | 1x Platinum | OCTOBER 2001 |
Australia Sales: 70,000
Certification / note: 1x Platinum
Certification Date / sales as of: OCTOBER 2001
|
 United Kingdom |
100,000 | 1x Gold | 3 August, 2001 |
United Kingdom Sales: 100,000
Certification / note: 1x Gold
Certification Date / sales as of: 3 August, 2001
|
| Total sales | 170,000 | (in 2 countries) |
Total
Sales: 170,000
(in 2 countries)
|
Year-end chart performance for SINCE I LEFT YOU
| Chart 2001 | Rank | Sales |
| Australian Albums (ARIA) |
51 | |
| UK Albums |
140 | 150,000 |
| UK Artist Albums |
109 | 150,000 |