condition mean min max ZT0-3 1180.25 1180.25 1180.25 ZT4-7 957.0 957.0 957.0 ZT8-11 932.8 932.8 932.8 ZT12-15 781.45 781.45 781.45 ZT16-19 1068.75 1068.75 1068.75 ZT20-23 1185.95 1185.95 1185.95