condition mean min max ZT0-3 530.7455 451.6065 609.8845 ZT4-7 395.7495 395.7495 395.7495 ZT8-11 718.903 718.903 718.903 ZT12-15 0 0 0 ZT16-19 914.6135 914.6135 914.6135 ZT20-23 689.9355 689.9355 689.9355