condition mean min max ZT0-3 35.530300000000004 7.6835 54.0182 ZT4-7 13.19795 13.19795 13.19795 ZT8-11 10.8921 10.8921 10.8921 ZT12-15 15.399735 8.50572 22.29375 ZT16-19 38.46885 38.46885 38.46885 ZT20-23 50.57515 50.57515 50.57515