I posted this a few weeks ago in response to a similar question regarding XL and XXL image sales on IS:
Here are the numbers from the last 500 sales of 5 of my XXL images (100 sales from each image):
| DLs | Avg. Price | Earnings |
XS | 151 | $0.25 | $37.75 |
S | 100 | $0.72 | $72.00 |
M | 141 | $1.18 | $166.38 |
L | 70 | $2.44 | $170.80 |
XL | 22 | $3.47 | $76.34 |
XXL | 16 | $4.98 | $79.68 |
These graphs show things a bit more clearly:
(http://www.strathdee.net/temp/xxl-chart1.jpg)
(http://www.strathdee.net/temp/xxl-chart2.jpg)
Although XL and XXL sales are low in volume, they together make up 26% of the total earnings of these 5 images.