condition mean min max ZT0-3 815.26107 815.26107 815.26107 ZT4-7 564.2312585 564.2312585 564.2312585 ZT8-11 515.080573 515.080573 515.080573 ZT12-15 625.5959204999999 625.5959204999999 625.5959204999999 ZT16-19 279.2622995 279.2622995 279.2622995 ZT20-23 280.4383285 280.4383285 280.4383285