condition mean min max ZT0-3 756.4000000000001 756.4000000000001 756.4000000000001 ZT4-7 998.5 998.5 998.5 ZT8-11 1048.75 1048.75 1048.75 ZT12-15 1317.35 1317.35 1317.35 ZT16-19 1100.65 1100.65 1100.65 ZT20-23 985.55 985.55 985.55