Which appreciates more? Google or Domain names?

Sedo has produced an interesting chart.

 

It compares price appreciation of the secondary market in domain names,

using a Domain Name Price Index, IDNX, to a chart of Google's share price, or

the price movement of the Nasdaq over a 6 year period. Some interesting results:

http://sedo.co.uk/uk/sedo/sedocoukidnx/?tracked=&partnerid=&language=e