condition mean min max ZT0-3 5.59975 5.59975 5.59975 ZT4-7 4.659610000000001 4.659610000000001 4.659610000000001 ZT8-11 4.495290000000001 4.495290000000001 4.495290000000001 ZT12-15 4.872885 4.872885 4.872885 ZT16-19 6.89154 6.89154 6.89154 ZT20-23 5.767955000000001 5.767955000000001 5.767955000000001