condition mean min max ZT0-3 4.85595884275 0.459164843 9.2527528425 ZT4-7 89.751763195 70.491669335 109.011857055 ZT8-11 56.20195203 49.624296085 62.779607975000005 ZT12-15 210.44334717499999 191.4482709 229.43842345 ZT16-19 269.99019027500003 249.18938185000002 290.79099870000005 ZT20-23 388.88132185 345.67101275 432.09163095