condition mean min max ZT0-3 104.6379 104.6379 104.6379 ZT4-7 76.839 76.839 76.839 ZT8-11 57.8925 57.8925 57.8925 ZT12-15 60.64305 60.64305 60.64305 ZT16-19 90.01910000000001 90.01910000000001 90.01910000000001 ZT20-23 101.0215 101.0215 101.0215