condition mean min max ZT0-3 0.7632355 0.7632355 0.7632355 ZT4-7 0.3157105 0.3157105 0.3157105 ZT8-11 0.84505 0.84505 0.84505 ZT12-15 0.48395 0.48395 0.48395 ZT16-19 0.7667485 0.7667485 0.7667485 ZT20-23 0.4510185 0.4510185 0.4510185