condition mean min max ZT0-3 0.04424825 0.04424825 0.04424825 ZT4-7 0.0363477 0.0363477 0.0363477 ZT8-11 0.0147817 0.0147817 0.0147817 ZT12-15 0.0180531 0.0180531 0.0180531 ZT16-19 0.0157793 0.0157793 0.0157793 ZT20-23 0.047305349999999996 0.047305349999999996 0.047305349999999996