condition mean min max ZT0-3 28.295233815 25.7342529 30.856214729999998 ZT4-7 24.637769745 24.14927224 25.126267249999998 ZT8-11 28.14356538166667 26.36059633 29.926534433333334 ZT12-15 34.47588489 30.35609122 38.59567856 ZT16-19 38.53590707166667 37.62358178666667 39.448232356666665 ZT20-23 36.41647988166666 34.94022701333333 37.89273275