condition mean min max ZT0-3 0.26472496325 0.153054948 0.3763949785 ZT4-7 0.68374536375 0.5388630535 0.828627674 ZT8-11 0.9973099145000001 0.6536338575 1.3409859715 ZT12-15 0.81365308925 0.6980465355 0.929259643 ZT16-19 0.7410733235 0.541605001 0.940541646 ZT20-23 1.019665148 0.970588148 1.0687421480000001