condition mean min max ZT0-3 127.56349999999999 125.45949999999999 129.6675 ZT4-7 31.035249999999998 31.035249999999998 31.035249999999998 ZT8-11 2.05516 2.05516 2.05516 ZT12-15 0 0 0 ZT16-19 0.8008405000000001 0.8008405000000001 0.8008405000000001 ZT20-23 83.26775 83.26775 83.26775