condition mean min max ZT0-3 10.48625 10.48625 10.48625 ZT4-7 14.910599999999999 14.910599999999999 14.910599999999999 ZT8-11 5.952375 5.952375 5.952375 ZT12-15 3.418975 3.418975 3.418975 ZT16-19 5.731095 5.731095 5.731095 ZT20-23 6.26121 6.26121 6.26121