condition mean min max ZT0-3 5.1240125 3.089195 7.15883 ZT4-7 16.47795 16.47795 16.47795 ZT8-11 10.78796 10.78796 10.78796 ZT12-15 0 0 0 ZT16-19 11.85266 11.85266 11.85266 ZT20-23 14.8297 14.8297 14.8297