condition mean min max ZT0-3 91.91537500000001 89.65065 94.18010000000001 ZT4-7 76.67335 76.67335 76.67335 ZT8-11 80.426 80.426 80.426 ZT12-15 0 0 0 ZT16-19 102.2114 102.2114 102.2114 ZT20-23 113.7985 113.7985 113.7985