condition mean min max ZT0-3 10.911249999999999 10.90555 10.91695 ZT4-7 9.14687 9.14687 9.14687 ZT8-11 9.842305 9.842305 9.842305 ZT12-15 0 0 0 ZT16-19 12.16375 12.16375 12.16375 ZT20-23 11.001650000000001 11.001650000000001 11.001650000000001