condition mean min max ZT0-3 45.85665 25.01145 66.70185000000001 ZT4-7 4.881095 4.881095 4.881095 ZT8-11 5.5246200000000005 5.5246200000000005 5.5246200000000005 ZT12-15 0 0 0 ZT16-19 93.67795000000001 93.67795000000001 93.67795000000001 ZT20-23 64.161 64.161 64.161