condition mean min max ZT0-3 43.039426039999995 36.84499078 49.233861299999994 ZT4-7 56.108390310000004 39.03220269 73.18457793 ZT8-11 114.5453008325 90.26555156500001 138.8250501 ZT12-15 69.2523674775 43.38707622 95.11765873499999 ZT16-19 35.0697393625 31.680868519999997 38.458610205 ZT20-23 23.431506482499998 19.70920894 27.153804025