condition mean min max ZT0-3 1122.7345 894.2135000000001 1388.385 ZT4-7 1225.0749999999998 1225.0749999999998 1225.0749999999998 ZT8-11 1210.4 1210.4 1210.4 ZT12-15 1131.92 1048.18 1215.6599999999999 ZT16-19 1031.818 1031.818 1031.818 ZT20-23 914.7425000000001 914.7425000000001 914.7425000000001