condition mean min max ZT0-3 1.36970237375 0.4285851615 2.310819586 ZT4-7 0.42470365899999996 0.3263215835 0.5230857345 ZT8-11 0.815448897 0.5730214695 1.0578763245 ZT12-15 1.043145215 0.9115429640000001 1.174747466 ZT16-19 0.5202194767499999 0.4569289005 0.5835100529999999 ZT20-23 0.34499989875 0.299143122 0.3908566755