condition mean min max ZT0-3 39.571999999999996 39.571999999999996 39.571999999999996 ZT4-7 25.0775 25.0775 25.0775 ZT8-11 27.1045 27.1045 27.1045 ZT12-15 50.7605 50.7605 50.7605 ZT16-19 58.821733333333334 58.821733333333334 58.821733333333334 ZT20-23 51.329899999999995 51.329899999999995 51.329899999999995