condition mean min max ZT0-3 148.302461 148.302461 148.302461 ZT4-7 98.83322000000001 98.83322000000001 98.83322000000001 ZT8-11 97.75514150000001 97.75514150000001 97.75514150000001 ZT12-15 123.5391275 123.5391275 123.5391275 ZT16-19 171.0409665 171.0409665 171.0409665 ZT20-23 124.87443400000001 124.87443400000001 124.87443400000001