condition mean min max ZT0-3 95.630357 95.630357 95.630357 ZT4-7 132.288375 132.288375 132.288375 ZT8-11 174.08926300000002 174.08926300000002 174.08926300000002 ZT12-15 127.98875050000001 127.98875050000001 127.98875050000001 ZT16-19 85.3878425 85.3878425 85.3878425 ZT20-23 92.2583195 92.2583195 92.2583195