condition mean min max ZT0-3 300.42875000000004 291.456 309.4015 ZT4-7 323.30150000000003 323.30150000000003 323.30150000000003 ZT8-11 309.418 309.418 309.418 ZT12-15 0 0 0 ZT16-19 343.572 343.572 343.572 ZT20-23 333.7145 333.7145 333.7145