condition mean min max ZT0-3 194.55 194.55 194.55 ZT4-7 188.1 188.1 188.1 ZT8-11 174.10000000000002 174.10000000000002 174.10000000000002 ZT12-15 333.95 333.95 333.95 ZT16-19 302.15 302.15 302.15 ZT20-23 290.2 290.2 290.2