condition mean min max ZT0-3 42.3808 40.282650000000004 44.47895 ZT4-7 18.4581 18.4581 18.4581 ZT8-11 3.41016 3.41016 3.41016 ZT12-15 0 0 0 ZT16-19 21.4755 21.4755 21.4755 ZT20-23 34.198 34.198 34.198