condition mean min max ZT0-3 0.131795982 0.108777093 0.154814871 ZT4-7 0.1521382565 0.10601421400000001 0.198262299 ZT8-11 1.8432158467500002 0.6729139095 3.0135177840000003 ZT12-15 4.8081720067500004 4.3018824925 5.314461521 ZT16-19 3.3161108759999998 2.975000926 3.657220826 ZT20-23 1.5891977329999998 1.2152180014999998 1.9631774645