concentration	density	组1	组2	组3	组4	组5
0	80.00 	35.02 	31.37 	35.79 	30.47 	39.31 
0	100.00 	44.24 	45.39 	44.11 	42.89 	42.13 
0	120.00 	48.08 	47.95 	46.29 	35.92 	50.38 
0	140.00 	55.95 	41.74 	43.73 	42.83 	42.17 
0	160.00 	55.12 	52.62 	67.03 	50.36 	51.41 
0	180.00 	50.70 	55.70 	52.62 	56.32 	51.23 
5	80.00 	30.35 	30.03 	25.80 	38.63 	32.10 
5	100.00 	32.33 	33.10 	34.11 	32.24 	31.24 
5	120.00 	35.15 	33.10 	33.58 	34.25 	35.00 
5	140.00 	43.47 	51.98 	43.25 	43.22 	42.51 
5	160.00 	50.19 	45.84 	48.91 	48.35 	48.31 
5	180.00 	44.75 	56.32 	59.84 	53.26 	54.01 
10	80.00 	21.90 	19.59 	27.40 	26.18 	19.72 
10	100.00 	35.40 	36.88 	34.64 	37.07 	34.25 
10	120.00 	48.08 	40.33 	46.61 	38.16 	42.00 
10	140.00 	54.48 	46.61 	55.19 	52.62 	53.01 
10	160.00 	51.22 	51.09 	49.42 	53.84 	50.83 
10	180.00 	53.20 	63.12 	50.58 	58.45 	72.66 
20	80.00 	19.66 	19.97 	18.95 	17.67 	19.05 
20	100.00 	19.46 	34.57 	36.30 	33.03 	34.44 
20	120.00 	41.10 	38.60 	39.82 	40.46 	36.17 
20	140.00 	43.66 	38.67 	41.74 	38.41 	55.06 
20	160.00 	48.02 	47.82 	41.10 	35.92 	44.75 
20	180.00 	50.38 	44.35 	43.21 	46.58 	47.22