condition mean min max ZT0-3 0.6440988487499999 0.110539684 1.1776580134999999 ZT4-7 2.411785095 2.06149606 2.7620741300000002 ZT8-11 2.065212023 1.9912151715 2.1392088745 ZT12-15 2.47310989375 2.1258675465 2.8203522409999997 ZT16-19 2.48417617075 1.7504164524999999 3.217935889 ZT20-23 7.61669990475 5.206162504 10.0272373055