condition mean min max ZT0-3 0.22454375000000001 0.0 0.44908750000000003 ZT4-7 0.18000850000000002 0.18000850000000002 0.18000850000000002 ZT8-11 0.088829 0.088829 0.088829 ZT12-15 0 0 0 ZT16-19 0.088181 0.088181 0.088181 ZT20-23 0.0 0.0 0.0