condition mean min max ZT0-3 0.58225625 0.4547525 0.7097600000000001 ZT4-7 0.8480460000000001 0.8480460000000001 0.8480460000000001 ZT8-11 2.13032 2.13032 2.13032 ZT12-15 0 0 0 ZT16-19 0.802424 0.802424 0.802424 ZT20-23 0.700801 0.700801 0.700801