condition mean min max ZT0-3 105.154375 95.7829 114.52585 ZT4-7 105.95025 105.95025 105.95025 ZT8-11 178.276 178.276 178.276 ZT12-15 0 0 0 ZT16-19 250.3005 250.3005 250.3005 ZT20-23 168.7025 168.7025 168.7025