condition mean min max ZT0-3 813.525 803.73 823.3199999999999 ZT4-7 836.328 836.328 836.328 ZT8-11 611.546 611.546 611.546 ZT12-15 0 0 0 ZT16-19 711.7395 711.7395 711.7395 ZT20-23 831.8340000000001 831.8340000000001 831.8340000000001