condition mean min max ZT0-3 0.6202065 0.6202065 0.6202065 ZT4-7 0.6107655000000001 0.6107655000000001 0.6107655000000001 ZT8-11 0.2838835 0.2838835 0.2838835 ZT12-15 0.2135485 0.2135485 0.2135485 ZT16-19 0.33215700000000004 0.33215700000000004 0.33215700000000004 ZT20-23 0.4602225 0.4602225 0.4602225