condition mean min max ZT0-3 303.87258787499997 189.30029555000002 418.44488019999994 ZT4-7 94.84863273500001 87.51747402000001 102.17979145000001 ZT8-11 57.859269735 51.430059635 64.288479835 ZT12-15 35.23851080749999 32.82414504 37.65287657499999 ZT16-19 41.5850418925 39.945265335 43.22481845 ZT20-23 45.7258181175 42.87789975 48.573736485000005