condition mean min max ZT0-3 1014.71217 1014.71217 1014.71217 ZT4-7 1192.9430945 1192.9430945 1192.9430945 ZT8-11 1093.1955795 1093.1955795 1093.1955795 ZT12-15 1188.370781 1188.370781 1188.370781 ZT16-19 1036.109159 1036.109159 1036.109159 ZT20-23 940.3203255000001 940.3203255000001 940.3203255000001