condition mean min max ZT0-3 60.50593833333333 9.818465 95.60095 ZT4-7 24.5244 24.5244 24.5244 ZT8-11 15.24665 15.24665 15.24665 ZT12-15 32.833650000000006 15.86705 49.800250000000005 ZT16-19 90.2591 90.2591 90.2591 ZT20-23 102.18025 102.18025 102.18025