condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.01063025 0.01063025 0.01063025 ZT8-11 0.01162485 0.01162485 0.01162485 ZT12-15 0.028123 0.028123 0.028123 ZT16-19 0.00926565 0.00926565 0.00926565 ZT20-23 0.0276961 0.0276961 0.0276961