condition mean min max ZT0-3 0.14178665 0.14178665 0.14178665 ZT4-7 5.67258 5.67258 5.67258 ZT8-11 9.29885 9.29885 9.29885 ZT12-15 1.90741 1.90741 1.90741 ZT16-19 0.6358265000000001 0.6358265000000001 0.6358265000000001 ZT20-23 0.17306 0.17306 0.17306