condition mean min max ZT0-3 13.0343 13.0343 13.0343 ZT4-7 10.396329999999999 10.396329999999999 10.396329999999999 ZT8-11 9.47073 9.47073 9.47073 ZT12-15 9.303975 9.303975 9.303975 ZT16-19 14.794 14.794 14.794 ZT20-23 13.28755 13.28755 13.28755