condition mean min max ZT0-3 0.12298200000000001 0.12298200000000001 0.12298200000000001 ZT4-7 0.0452621 0.0452621 0.0452621 ZT8-11 0.0428925 0.0428925 0.0428925 ZT12-15 0.0 0.0 0.0 ZT16-19 0.039429149999999996 0.039429149999999996 0.039429149999999996 ZT20-23 0.058678999999999995 0.058678999999999995 0.058678999999999995