condition mean min max ZT0-3 65.79543333333334 53.35955 80.0291 ZT4-7 46.28085 46.28085 46.28085 ZT8-11 53.3094 53.3094 53.3094 ZT12-15 86.32095000000001 80.94155 91.70035 ZT16-19 86.3141 86.3141 86.3141 ZT20-23 92.88355 92.88355 92.88355