(9.1) Due to the high volume of Steemcleaners transactions and the depth of data mining required for detailed KPIs, there is a limit of what can be reasonably provided for community assessment at this time.

The following numbers were retrieved using SteemSQL (thank you @arcange) for 2019:

• a total of 10098 downvotes were issued
• the sum of the downvotes (in %) is 2326 x 100%
• 1.61 million SP at 100% 2326 times is, at recent values of STEEM (15 cents median over Sept) is approximately $25 downvotes being issued 2326 times
• $58,150 worth of downvotes, if using this month's value of STEEM and converting it to USD, has been returned to the reward pool in 2019
• the value of STEEM in 2019 varied from approx 52 cents to 13 cents
• if we take the median of STEEM's price in 2019 we end up at approx 32.5 cents/STEEM
• for the sake of simplicity, let's lowball it at 30 cents, which will double our calculation to $116,300 in USD returned to the reward pool
• depending on whether we use the current price of STEEM or the overall price of STEEM for 2019, a total of $58,150 and $116,300 has been returned to the reward pool