condition mean min max ZT0-3 0.09344400000000001 0.0 0.280332 ZT4-7 0.089224 0.089224 0.089224 ZT8-11 0.094003 0.094003 0.094003 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0 0.0 0.0 ZT20-23 0.0 0.0 0.0