condition mean min max ZT0-3 9779.95 9779.95 9779.95 ZT4-7 17064.5 17064.5 17064.5 ZT8-11 16898.1 16898.1 16898.1 ZT12-15 13875.7 13875.7 13875.7 ZT16-19 8732.55 8732.55 8732.55 ZT20-23 7384.4 7384.4 7384.4