condition mean min max ZT0-3 15777.333 15777.333 15777.333 ZT4-7 16503.10548 16503.10548 16503.10548 ZT8-11 15072.924295 15072.924295 15072.924295 ZT12-15 16732.26954 16732.26954 16732.26954 ZT16-19 13120.40077 13120.40077 13120.40077 ZT20-23 13506.79696 13506.79696 13506.79696