condition mean min max ZT0-3 0.005013566666666667 0.005013566666666667 0.005013566666666667 ZT4-7 0.0080775 0.0080775 0.0080775 ZT8-11 0.00551975 0.00551975 0.00551975 ZT12-15 0.012148949999999999 0.012148949999999999 0.012148949999999999 ZT16-19 0.0 0.0 0.0 ZT20-23 0.016135800000000002 0.016135800000000002 0.016135800000000002