condition mean min max ZT0-3 5734.45 5734.45 5734.45 ZT4-7 7493.6 7493.6 7493.6 ZT8-11 8615.15 8615.15 8615.15 ZT12-15 6545.75 6545.75 6545.75 ZT16-19 4893.75 4893.75 4893.75 ZT20-23 5030.5 5030.5 5030.5