#Intron_position	number	Mean_intron_length	stdev	Ratio_to_mean_intron_length	Ratio_to_mean_non-first_intron_length	Median_intron_length	Ratio_to_median_intron_length	Ratio_to_median_non-first_intron_length
1	5386	94.1403639064	79.1713182865	1.13655887444	1.21100087422	69.0	1.09523809524	1.11290322581
2	5386	80.2439658374	69.2992341399	0.9687873268	1.03224067496	63.0	1.0	1.01612903226
3	2957	78.2593845113	70.5912276734	0.944827428786	1.00671145858	61.0	0.968253968254	0.983870967742
4	1560	73.8833333333	67.7519361379	0.891995257813	0.950418901567	61.0	0.968253968254	0.983870967742
5	867	74.0334486736	52.3329112376	0.893807603921	0.952349952189	60.0	0.952380952381	0.967741935484
6	471	74.4267515924	54.1453423241	0.898555959506	0.957409314175	61.0	0.968253968254	0.983870967742
7	275	72.7272727273	50.0331724669	0.878038110351	0.935547592954	59.0	0.936507936508	0.951612903226
8	153	68.5947712418	25.4975169645	0.828146320665	0.882388005462	61.0	0.968253968254	0.983870967742
9	103	78.0388349515	71.9311864161	0.942164728653	1.00387435769	61.0	0.968253968254	0.983870967742
10	64	64.984375	16.9147607391	0.784557920126	0.835944664649	61.5	0.97619047619	0.991935483871
11	44	75.0227272727	47.2154099634	0.905751188209	0.965075813857	64.0	1.01587301587	1.03225806452
12	24	66.6666666667	14.3778378841	0.804868267822	0.857585293541	64.0	1.01587301587	1.03225806452
13	17	67.6470588235	34.6969081119	0.816704565878	0.870196841976	59.0	0.936507936508	0.951612903226
14	12	62.5	10.380269746	0.754564001083	0.803986212695	58.5	0.928571428571	0.943548387097
15	10	96.1	63.4514775242	1.16021760806	1.23620920064	73.0	1.15873015873	1.17741935484
16	7	66.2857142857	17.1523783083	0.800269020577	0.852684806149	60.0	0.952380952381	0.967741935484
17	5	71.0	24.8917657068	0.85718470523	0.913328337621	58.0	0.920634920635	0.935483870968
18	3	101.666666667	59.6340693079	1.22742410843	1.30781757265	60.0	0.952380952381	0.967741935484
19	3	62.0	14.3527000944	0.748527489074	0.797554322993	55.0	0.873015873016	0.887096774194
20	1	52.0	0.0	0.627797248901	0.668916528962	52.0	0.825396825397	0.838709677419
21	1	52.0	0.0	0.627797248901	0.668916528962	52.0	0.825396825397	0.838709677419
22	1	97.0	0.0	1.17108332968	1.2477866021	97.0	1.53968253968	1.56451612903
23	1	59.0	0.0	0.712308417022	0.758962984784	59.0	0.936507936508	0.951612903226