condition mean min max ZT0-3 1118.1 1118.1 1118.1 ZT4-7 1323.7 1323.7 1323.7 ZT8-11 1282.05 1282.05 1282.05 ZT12-15 1210.3 1210.3 1210.3 ZT16-19 1281.8 1281.8 1281.8 ZT20-23 1171.85 1171.85 1171.85