#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	4586	93.1548190144	83.0994970007	1.10917495231	1.16797616088	72.0	1.07462686567	1.10769230769
2	4586	82.8366768426	107.80162471	0.986318990884	1.03860717913	67.0	1.0	1.03076923077
3	2524	79.8308240887	96.7259283475	0.950528930637	1.00091976374	65.0	0.970149253731	1.0
4	1319	77.6899166035	132.650195748	0.925037592851	0.974077041788	64.0	0.955223880597	0.984615384615
5	680	74.85	61.5851717733	0.89122329965	0.938470135706	64.0	0.955223880597	0.984615384615
6	353	71.6997167139	55.2174729595	0.853713535254	0.898971848691	63.0	0.940298507463	0.969230769231
7	195	69.7076923077	32.6331857566	0.829994917161	0.873995824445	63.0	0.940298507463	0.969230769231
8	112	68.6339285714	27.5373109019	0.817209836866	0.860532962731	61.0	0.910447761194	0.938461538462
9	60	65.55	24.4052077776	0.780490144183	0.82186663187	62.0	0.925373134328	0.953846153846
10	33	61.0909090909	9.78051134675	0.727396681077	0.765958500266	56.0	0.835820895522	0.861538461538
11	19	63.1052631579	9.88297172888	0.751381173773	0.791214494048	58.0	0.865671641791	0.892307692308
12	15	90.2666666667	104.661018956	1.07478632619	1.1317644745	55.0	0.820895522388	0.846153846154
13	11	88.2727272727	75.7328929487	1.05104490674	1.10676444012	68.0	1.01492537313	1.04615384615
14	11	59.8181818182	2.75740925238	0.712242583555	0.750001031511	60.0	0.89552238806	0.923076923077
15	9	60.7777777778	11.7641430512	0.723668292004	0.762032456366	55.0	0.820895522388	0.846153846154
16	9	68.8888888889	7.70922167053	0.820245596056	0.863729658038	66.0	0.985074626866	1.01538461538
17	6	58.8333333333	4.87909372277	0.700516198567	0.737652990212	58.5	0.873134328358	0.9
18	3	64.6666666667	2.35702260396	0.769972478878	0.810791388675	63.0	0.940298507463	0.969230769231