condition mean min max ZT0-3 13.917537056249998 5.056215212 22.778858900499998 ZT4-7 54.439101664999995 43.013765135 65.86443819499999 ZT8-11 112.6513194525 92.70658810500001 132.5960508 ZT12-15 79.0376963125 51.919312715000004 106.15607990999999 ZT16-19 27.532116262499997 22.645064904999998 32.419167619999996 ZT20-23 15.8923336315 12.940075173 18.84459209