condition mean min max ZT0-3 46.2021 46.2021 46.2021 ZT4-7 59.02815 59.02815 59.02815 ZT8-11 51.730500000000006 51.730500000000006 51.730500000000006 ZT12-15 28.34565 28.34565 28.34565 ZT16-19 37.082300000000004 37.082300000000004 37.082300000000004 ZT20-23 32.674949999999995 32.674949999999995 32.674949999999995