There is a question about BTCDD aka CoinDD at the Bitcoin StackExchange site:
http://bitcoin.stackexchange.com/q/845/99I note that there seems to be a discrepancy in the percentage calculations between the chart shown in the wiki and the value calculated by ABE. E.g. the ABE result for block 131400, which was also around June 17 2011, was "Cumulative Coin-days Destroyed: 35.1672%", but the value from the wiki graph is about 28% on June 17. The corresponding value on the banana.mine.nu graph is about 900,000,000 bitcoin days. More info and links to the details are on the StackExchange site.
Does anyone know exactly how the values are calculated by any of these three sites?
I note also that the percentage value seems relatively flat over the last quarter, at least according to ABE. They
report it as 36.1245% as of block 145677 at 2011-09-17, vs 35.1627% on June 17.
Does anyone know of a regularly updated graph by percent, rather than the graph of the raw numbers at
http://banana.mine.nu/daysdest.html