Table 9.

The population percentages in the indicated databases with respect to the total database population for topologies with the given numbers of 3- and 4-nodes, N₃ and N₄, for structures with r = 0–6 rings. Blank entries indicate that no representatives of that class of topologies were found in the specified database. r = 0 values represent structures that contain no rings.

r	N4	N3	Chem Nav.	DNP	Drugs	Pub Chem	PC actives	DSSTox	WOM BAT	merged	GDB
0	0	0	0.245	8.633	6.492	2.466	3.837	25.057	1.641	1.225	15.414
1	0	0	2.979	11.831	16.630	8.212	10.771	29.808	6.588	5.248	41.721
2	0	2	20.808	15.390	25.492	24.094	18.384	19.515	16.680	21.981	29.521
	1	0	0.017	0.285	0.109	0.112	0.273	0.060		0.061	2.425
3	0	4	36.792	19.126	23.669	30.813	26.067	12.746	28.190	34.064	7.299
	1	2	0.287	1.172	0.547	0.523	0.664	0.179	0.659	0.399	2.090
	2	0	0.001	0.023		0.015	0.036	0.001		0.007	0.110
4	0	6	25.694	13.106	16.156	20.376	20.370	7.612	25.496	23.463	1.008
	1	4	0.729	2.829	1.349	0.931	2.132	0.664	1.184	0.838	0.300
	2	2	0.004	0.215	0.036	0.031	0.051	0.005		0.016	0.041
	3	0	0.000	0.006		0.002	0.013			0.001	0.001
5	0	8	9.178	8.721	4.413	7.382	8.652	2.095	11.800	8.492	0.057
	1	6	0.554	2.115	0.839	0.682	1.103	0.383	0.971	0.630	0.010
	2	4	0.028	1.097	0.036	0.064	0.180	0.026	0.073	0.047	0.002
	3	2	0.000	0.022		0.002				0.001
	4	0	0.000			0.001				0.000
6	0	10	2.004	3.517	1.714	2.044	3.001	0.741	3.524	2.071	0.001
	1	8	0.238	1.808	0.511	0.356	0.651	0.128	0.472	0.301	0.000
	2	6	0.028	0.657	0.036	0.063	0.219		0.106	0.046
	3	4	0.000	0.137		0.006	0.013		0.010	0.003
	4	2	0.000	0.0005		0.0001				0.000
	5	0				0.000				0.000