So, lets draw a line.

Day | Total deposited BTC | Number of deposits
Day#1 93,6 127
Day#2 75,6 94
Day#3 72,9 77
Day#4 58,4 74

Basically, every day volume of 24ponzi will be less and less because of few factors:
a) Bots, that starting round in first 0-1 seconds
b) Decreasing amount of investors that quit because of money loss
c) Decreasing amount of people that quit because they think that the game is unfair (59:59 payouts, double spend, wrong addresses order, etc.)

Less volume - more risky game. In fact few next rounds we will see only bots vs bots competition.
But op can save the situation making for example some king of reward for last 3 deposits like it was in weekly one, etc. People need to be interested in participation, not only bots/smart asses.