condition mean min max ZT0-3 0.07699625 0.050504 0.10348850000000001 ZT4-7 0.101943 0.101943 0.101943 ZT8-11 0.7760800000000001 0.7760800000000001 0.7760800000000001 ZT12-15 0 0 0 ZT16-19 0.6102935 0.6102935 0.6102935 ZT20-23 0.2558685 0.2558685 0.2558685