condition mean min max ZT0-3 2421.9 2421.9 2421.9 ZT4-7 4969.6 4969.6 4969.6 ZT8-11 3901.0499999999997 3901.0499999999997 3901.0499999999997 ZT12-15 2349.55 2349.55 2349.55 ZT16-19 2234.9 2234.9 2234.9 ZT20-23 2634.55 2634.55 2634.55