condition mean min max ZT0-3 80.312 61.0204 99.6036 ZT4-7 56.3977 56.3977 56.3977 ZT8-11 127.69800000000001 127.69800000000001 127.69800000000001 ZT12-15 131.041 121.69200000000001 140.39 ZT16-19 97.7773 97.7773 97.7773 ZT20-23 75.65856666666667 75.65856666666667 75.65856666666667