condition mean min max ZT0-3 90.5518663325 73.148430565 107.9553021 ZT4-7 57.0923652675 50.493932095000005 63.69079844 ZT8-11 99.738400125 79.53042465 119.94637560000001 ZT12-15 80.084440325 60.097930665 100.070949985 ZT16-19 56.0366371725 53.149513455000005 58.92376089 ZT20-23 67.4796559575 63.968204595 70.99110732