SCO members signed protocols for admitting new members, and various officials from member countries have signaled that India and Pakistan will be invited to join at next year's summit in Ufa, Russia.
17,280-23,040 per day. The average person takes about 15 breaths a minute. So, 15 x 60 (minutes in an hour)= 900 x 24 (hours in a day) = 21,600. Depending on the circumstances, the average person in- and exhales 12 times per minute 0.5 litres of air. 12 times 0.5 makes 6 litres of air per minute.
Somewhere between 500-600 liters of oxygen (at 1 atm pressure) a day. That may sound like a lot, but there are only 1.42 grams of oxygen/liter at 0C, 1ATM. So that's only 710-852g/day. Or, a pound and a half to just under two pounds/day.