condition mean min max ZT0-3 2205.2 2205.2 2205.2 ZT4-7 1973.2 1973.2 1973.2 ZT8-11 2088.8 2088.8 2088.8 ZT12-15 2380.0 2380.0 2380.0 ZT16-19 2297.9 2297.9 2297.9 ZT20-23 1897.4 1897.4 1897.4