condition mean min max ZT0-3 0.38028910525 0.0 0.7605782105 ZT4-7 0.5301197835 0.432918825 0.627320742 ZT8-11 0.2555379465 0.0 0.511075893 ZT12-15 0.129496107 0.10793973650000001 0.1510524775 ZT16-19 0.8986380745 0.570443874 1.226832275 ZT20-23 3.585752275 1.709906668 5.4615978819999995