This website attempts to collate the cumulative amount of Bitcoins that have been sent to various wallet addresses following ransomware outbreaks. It was thrown together quite quickly, so please don't go looking at the page source… it's full of hastilly commented out code.
The accuracy of information on this site is not guaranteed to be 100% exact. If you do something based off this site, you're responsible. The currency value is based off the current transaction rate based on the total value - it doesn't contain historical information.
If you know an address for a Bitcoin wallet that is used by ransomware to accept payments, please get in contact.