condition mean min max ZT0-3 0.7091375 0.7091375 0.7091375 ZT4-7 0.0727675 0.0727675 0.0727675 ZT8-11 0.7685390000000001 0.7685390000000001 0.7685390000000001 ZT12-15 0.623045 0.623045 0.623045 ZT16-19 1.01424 1.01424 1.01424 ZT20-23 0.470856 0.470856 0.470856