condition mean min max ZT0-3 62.449999999999996 62.449999999999996 62.449999999999996 ZT4-7 92.7 92.7 92.7 ZT8-11 109.2 109.2 109.2 ZT12-15 116.55000000000001 116.55000000000001 116.55000000000001 ZT16-19 73.2 73.2 73.2 ZT20-23 60.2 60.2 60.2