condition mean min max ZT0-3 573.0754999999999 573.0754999999999 573.0754999999999 ZT4-7 519.097 519.097 519.097 ZT8-11 485.075 485.075 485.075 ZT12-15 443.2025 443.2025 443.2025 ZT16-19 591.825 591.825 591.825 ZT20-23 626.2615000000001 626.2615000000001 626.2615000000001