Take your pick of the possible ranking systems - Tsu is on its way down the rankings
Alexa.com - 42% of traffic comes from 4 countries - top of the list is India with 17.6% (ranked 3,256 site) , the USA is second with 7.8% (ranked 16,175) - making this a not viable advertising site for any company looking for reach.
Hypestat.com: "Tsu.co receives about 72,000 unique visitors and 589,680 (8.19 per visitor) page views per day which should earn about$576.00/day from advertising revenue. Estimated site value is $357,267.84. According to Alexa Traffic Rank tsu.co is ranked number 6,148 in the world and 0.0144% of global Internet users visit it. " (19th March 2016)
We sought to build a business on Tsu and after 15 months of hard work and effort promoting and following the rules, we have had to face the inevitable truth - a company making a total of $576 a day is never going to be able to payout to members at a rate which makes any kind of difference.
Your time would be better spent spending the average 13 minutes air time by walking around the block and getting some sunshine.