condition mean min max ZT0-3 6695.35 6695.35 6695.35 ZT4-7 6226.6 6226.6 6226.6 ZT8-11 5556.3 5556.3 5556.3 ZT12-15 5062.95 5062.95 5062.95 ZT16-19 6535.45 6535.45 6535.45 ZT20-23 6825.700000000001 6825.700000000001 6825.700000000001