condition mean min max ZT0-3 94.27358333333333 94.27358333333333 94.27358333333333 ZT4-7 86.6872 86.6872 86.6872 ZT8-11 58.1286 58.1286 58.1286 ZT12-15 56.54755 56.54755 56.54755 ZT16-19 71.12885 71.12885 71.12885 ZT20-23 102.6759 102.6759 102.6759