condition mean min max ZT0-3 367.29999999999995 367.29999999999995 367.29999999999995 ZT4-7 420.1 420.1 420.1 ZT8-11 361.79999999999995 361.79999999999995 361.79999999999995 ZT12-15 425.29999999999995 425.29999999999995 425.29999999999995 ZT16-19 349.29999999999995 349.29999999999995 349.29999999999995 ZT20-23 394.85 394.85 394.85