Hallo
Sorry for not writing in German, but I am from Sweden.
I have been collecting sales statistics from egun.de, for almost 3 years. Today it is a little more than 2500 sold guns.
The airguns included are Anschutz, 220,250 and 380. Diana 30, 50, 60, 65, 66, 75, and 100. FWB 150 and 300.
Following this link: http://www.mediafire.com/?rez21c022rmmn , you can download the whole file as an Excel spreadsheet with two tabs; one for data and one for graphics.
The file is updated weekly, and the headers are in German so you should not have problems reading it.
It can be of use if you intend to buy or sell a guns, or are just interested in the price.
Hope you like it and find it useful. Feel free to comment, in German if you like. I will answer in English
Best regards,
Micke
Add: New update of file 27/3-2011. Link changed due to problems with MediaFire. 27/3-2011