condition mean min max ZT0-3 853.1500000000001 853.1500000000001 853.1500000000001 ZT4-7 870.6 870.6 870.6 ZT8-11 869.4 869.4 869.4 ZT12-15 1210.1 1210.1 1210.1 ZT16-19 1235.55 1235.55 1235.55 ZT20-23 1118.3000000000002 1118.3000000000002 1118.3000000000002