condition mean min max ZT0-3 1.3375425 1.206915 1.46817 ZT4-7 1.0767015 1.0767015 1.0767015 ZT8-11 0.8307545000000001 0.8307545000000001 0.8307545000000001 ZT12-15 0 0 0 ZT16-19 1.0585550000000001 1.0585550000000001 1.0585550000000001 ZT20-23 0.9194209999999999 0.9194209999999999 0.9194209999999999