condition mean min max ZT0-3 145.91275333750002 128.100442675 163.725064 ZT4-7 58.6800552 55.608692770000005 61.75141763 ZT8-11 58.53682595 53.552683715 63.520968185 ZT12-15 32.049007135 24.91995785 39.17805642 ZT16-19 30.7104832925 26.42259343 34.998373155 ZT20-23 48.8614887975 47.591256755 50.13172084