condition mean min max ZT0-3 2.2221825 2.12887 2.3154950000000003 ZT4-7 0.9446540000000001 0.9446540000000001 0.9446540000000001 ZT8-11 1.12508 1.12508 1.12508 ZT12-15 0 0 0 ZT16-19 1.878395 1.878395 1.878395 ZT20-23 1.00972 1.00972 1.00972