condition mean min max ZT0-3 2982.75 2982.75 2982.75 ZT4-7 3098.1 3098.1 3098.1 ZT8-11 2822.9 2822.9 2822.9 ZT12-15 3420.9 3420.9 3420.9 ZT16-19 3107.65 3107.65 3107.65 ZT20-23 2985.6499999999996 2985.6499999999996 2985.6499999999996