condition mean min max ZT0-3 51.529781 51.529781 51.529781 ZT4-7 46.2569235 46.2569235 46.2569235 ZT8-11 36.045092 36.045092 36.045092 ZT12-15 33.284111 33.284111 33.284111 ZT16-19 51.1218755 51.1218755 51.1218755 ZT20-23 44.8111355 44.8111355 44.8111355