condition mean min max ZT0-3 0.16576200000000002 0.1638255 0.1676985 ZT4-7 0.336214 0.336214 0.336214 ZT8-11 0.170707 0.170707 0.170707 ZT12-15 0 0 0 ZT16-19 1.8149700000000002 1.8149700000000002 1.8149700000000002 ZT20-23 1.8237450000000002 1.8237450000000002 1.8237450000000002