condition mean min max ZT0-3 95.0644327775 64.06880109 126.060064465 ZT4-7 200.95102582500002 180.45805065000002 221.44400100000001 ZT8-11 254.87237184999998 227.3063823 282.43836139999996 ZT12-15 248.86144685 229.65893515 268.06395855 ZT16-19 191.81177902500002 184.32201485000002 199.3015432 ZT20-23 149.04679615 124.2146894 173.8789029