condition mean min max ZT0-3 11863.0 11863.0 11863.0 ZT4-7 14672.1 14672.1 14672.1 ZT8-11 15842.45 15842.45 15842.45 ZT12-15 15390.349999999999 15390.349999999999 15390.349999999999 ZT16-19 14390.55 14390.55 14390.55 ZT20-23 12659.3 12659.3 12659.3