condition mean min max ZT0-3 1420.565 1290.075 1551.055 ZT4-7 570.942 570.942 570.942 ZT8-11 259.026 259.026 259.026 ZT12-15 0 0 0 ZT16-19 811.249 811.249 811.249 ZT20-23 888.229 888.229 888.229