condition mean min max ZT0-3 7492.6 7492.6 7492.6 ZT4-7 11131.3 11131.3 11131.3 ZT8-11 10975.400000000001 10975.400000000001 10975.400000000001 ZT12-15 10538.7 10538.7 10538.7 ZT16-19 10844.15 10844.15 10844.15 ZT20-23 9279.45 9279.45 9279.45