condition mean min max ZT0-3 718.75 718.75 718.75 ZT4-7 274.9 274.9 274.9 ZT8-11 288.8 288.8 288.8 ZT12-15 335.2 335.2 335.2 ZT16-19 625.9 625.9 625.9 ZT20-23 831.85 831.85 831.85