condition mean min max ZT0-3 119.522394 119.522394 119.522394 ZT4-7 129.075175 129.075175 129.075175 ZT8-11 134.7992275 134.7992275 134.7992275 ZT12-15 130.309256 130.309256 130.309256 ZT16-19 135.856143 135.856143 135.856143 ZT20-23 108.6953705 108.6953705 108.6953705