condition mean min max ZT0-3 235.75 235.75 235.75 ZT4-7 250.6 250.6 250.6 ZT8-11 361.45 361.45 361.45 ZT12-15 264.05 264.05 264.05 ZT16-19 242.9 242.9 242.9 ZT20-23 224.89999999999998 224.89999999999998 224.89999999999998