Table 2.

Mean and SEs for K_a, K_s and K_a/K_s within genomes for those IS families where there exist genomes that contain more than one IS of the same family

IS Family	Mean Ka	SE	Mean Ks	SE	Mean Ka/Ks	SE
IS1	0.0057	0.00015	0.011	0.00031	0.396	0.0029
IS4	0.0063	0.00026	0.007	0.00035	0.86	0.02
ISL3	0	0	0	0	NA	NA
IS5	0.043	0.0013	0.48	0.015	0.22	0.0048
IS110	0.0039	0.003	0.043	0.016	0.7	0.15
IS21	0.00076	0.0002	0.00053	0.00031	0.41	0.15
IS3	0.0098	0.00084	0.018	0.0011	0.41	0.0087
IS256	0	0	0	0	NA	NA
IS91	0.0065	0.0012	0.029	0.011	0.57	0.078
IS30	0.0006	0.00023	0.0032	0.0012	0.19	0
IS630	0.021	0.0041	0.2	0.041	0.17	0.019
IS481	0.0057	0.00025	0.021	0.0013	0.33	0.009
IS982	0.0078	0.00011	0.016	0.00039	0.62	0.017
IS66	0.003	NA	0.022	NA	0.13	NA
Tn3	0.00057	0.00044	0	0	NA	NA
All Families	0.012	0.0002	0.033	0.00081	0.39	0.003

NA (not applicable) indicates insufficient data.