condition mean min max ZT0-3 317.41803 317.41803 317.41803 ZT4-7 753.553271 753.553271 753.553271 ZT8-11 1669.657846 1669.657846 1669.657846 ZT12-15 1527.8580215 1527.8580215 1527.8580215 ZT16-19 931.4892205 931.4892205 931.4892205 ZT20-23 540.8803115000001 540.8803115000001 540.8803115000001