condition mean min max ZT0-3 18.004744382250003 10.071151674500001 25.93833709 ZT4-7 56.367793262499994 42.34979444 70.38579208499999 ZT8-11 64.319522745 63.9708698 64.66817569 ZT12-15 50.757218477500004 48.613011560000004 52.901425395000004 ZT16-19 69.85705339750001 56.029529955 83.68457684 ZT20-23 109.7256207525 98.58166495500001 120.86957655