condition mean min max ZT0-3 0.006692383333333334 0.0 0.01035715 ZT4-7 0.0095109 0.0095109 0.0095109 ZT8-11 0.029985 0.029985 0.029985 ZT12-15 0.04685635 0.0325817 0.061131 ZT16-19 0.0093256 0.0093256 0.0093256 ZT20-23 0.0218267 0.0218267 0.0218267