condition mean min max ZT0-3 97.462839 97.462839 97.462839 ZT4-7 107.4083015 107.4083015 107.4083015 ZT8-11 97.452737 97.452737 97.452737 ZT12-15 93.0258405 93.0258405 93.0258405 ZT16-19 78.0513465 78.0513465 78.0513465 ZT20-23 60.504166 60.504166 60.504166