condition mean min max ZT0-3 3132.95 3132.95 3132.95 ZT4-7 1824.0 1824.0 1824.0 ZT8-11 1725.0 1725.0 1725.0 ZT12-15 2976.5 2976.5 2976.5 ZT16-19 3436.0 3436.0 3436.0 ZT20-23 3576.3500000000004 3576.3500000000004 3576.3500000000004