condition mean min max ZT0-3 0.1489799 0.07020245 0.208986 ZT4-7 0.6908755 0.6908755 0.6908755 ZT8-11 0.851471 0.851471 0.851471 ZT12-15 0.74895475 0.7138595000000001 0.78405 ZT16-19 0.7802605 0.7802605 0.7802605 ZT20-23 0.3265585 0.3265585 0.3265585