concentration	density	组1	组2	组3	组4	组5
0	80.00 	28.87 	32.84 	32.33 	27.85 	37.77 
0	100.00 	34.57 	30.03 	30.28 	34.83 	37.71 
0	120.00 	35.53 	40.59 	47.76 	39.76 	29.32 
0	140.00 	40.08 	35.47 	38.73 	38.99 	33.87 
0	160.00 	50.00 	50.23 	70.55 	55.45 	52.68 
0	180.00 	47.63 	52.85 	52.34 	54.03 	52.33 
5	80.00 	25.10 	26.31 	41.87 	30.73 	16.65 
5	100.00 	21.51 	27.91 	37.45 	30.09 	32.84 
5	120.00 	28.55 	42.38 	34.12 	38.22 	35.81 
5	140.00 	50.83 	53.39 	35.85 	27.02 	41.78 
5	160.00 	51.79 	43.98 	56.91 	43.66 	39.24 
5	180.00 	51.92 	46.86 	43.41 	68.89 	46.03 
10	80.00 	37.64 	37.90 	40.72 	29.07 	28.81 
10	100.00 	34.70 	33.74 	28.04 	39.95 	24.33 
10	120.00 	36.04 	45.52 	33.35 	34.57 	35.53 
10	140.00 	48.08 	48.08 	36.17 	40.33 	27.91 
10	160.00 	65.81 	49.30 	44.69 	38.22 	48.08 
10	180.00 	63.96 	60.56 	50.32 	36.36 	36.43 
20	80.00 	30.86 	29.19 	21.13 	24.90 	26.53 
20	100.00 	31.43 	37.13 	35.28 	32.33 	34.06 
20	120.00 	34.89 	29.58 	34.70 	37.07 	35.06 
20	140.00 	49.49 	44.62 	46.48 	24.58 	29.19 
20	160.00 	38.48 	39.05 	46.93 	46.22 	27.40 
20	180.00 	28.81 	57.68 	54.80 	31.75 	46.29