condition mean min max ZT0-3 423.8655 423.8655 423.8655 ZT4-7 391.5745 391.5745 391.5745 ZT8-11 309.034 309.034 309.034 ZT12-15 314.106 314.106 314.106 ZT16-19 322.3215 322.3215 322.3215 ZT20-23 405.0665 405.0665 405.0665