#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	2019	464.814264487	937.146399249	1.38636373443	1.61461914182	81.0	1.24615384615	1.32786885246
2	2019	513.892025755	968.082111687	1.53274398475	1.7850999098	93.0	1.43076923077	1.52459016393
3	1006	310.795228628	716.885313354	0.926983672238	1.079605261	75.0	1.15384615385	1.22950819672
4	600	187.633333333	503.751161013	0.559638695663	0.651779419844	58.5	0.9	0.959016393443
5	427	114.75175644	342.989514749	0.342260738848	0.39861165343	52.0	0.8	0.852459016393
6	288	79.75	211.188041539	0.237863844266	0.277026516606	14.0	0.215384615385	0.229508196721
7	218	56.1146788991	102.533998233	0.167368692698	0.194924815372	10.5	0.161538461538	0.172131147541
8	178	57.797752809	133.347622062	0.172388660477	0.200771286876	6.0	0.0923076923077	0.0983606557377
9	151	41.5033112583	69.8531927122	0.123788553801	0.144169501511	4.0	0.0615384615385	0.0655737704918
10	117	43.7606837607	72.3157428183	0.130521435323	0.152010906414	4.0	0.0615384615385	0.0655737704918
11	93	39.1720430108	61.4585486072	0.116835269446	0.136071405939	5.0	0.0769230769231	0.0819672131148
12	75	49.7866666667	121.406127614	0.148494644847	0.172943283261	3.0	0.0461538461538	0.0491803278689
13	64	32.515625	46.1749364467	0.0969817123663	0.112949095035	4.0	0.0615384615385	0.0655737704918
14	56	35.1964285714	53.6867300852	0.104977527328	0.122261366823	4.0	0.0615384615385	0.0655737704918
15	45	46.8444444444	53.3995237413	0.139719117719	0.162722924975	5.0	0.0769230769231	0.0819672131148
16	37	40.2162162162	53.4203803275	0.119949640013	0.139698536545	5.0	0.0769230769231	0.0819672131148
17	27	28.7407407407	51.3539587659	0.085722671845	0.0998363296813	4.0	0.0615384615385	0.0655737704918
18	22	40.2272727273	64.8914701063	0.11998261737	0.139736943401	4.5	0.0692307692308	0.0737704918033
19	19	17.7368421053	27.6840104055	0.0529022375962	0.0616122330284	5.0	0.0769230769231	0.0819672131148
20	15	24.3333333333	35.7186537011	0.0725770559307	0.0845263770627	3.0	0.0461538461538	0.0491803278689
21	12	36.25	43.857962029	0.108119929212	0.125921143912	4.5	0.0692307692308	0.0737704918033
22	7	19.2857142857	37.4688986674	0.0575219327826	0.0669925297659	5.0	0.0769230769231	0.0819672131148
23	7	19.0	33.8905802336	0.0566697560007	0.0660000478435	3.0	0.0461538461538	0.0491803278689
24	6	38.5	36.2985307324	0.11483082137	0.133736939051	29.5	0.453846153846	0.483606557377
25	6	43.8333333333	47.5934752764	0.1307381213	0.15226326827	19.5	0.3	0.319672131148
26	5	41.6	74.2040430165	0.124076939454	0.14450536791	5.0	0.0769230769231	0.0819672131148
27	4	28.25	42.0200844835	0.0842589793168	0.098131650083	4.5	0.0692307692308	0.0737704918033
28	3	56.0	73.557233952	0.167026649265	0.194526456802	6.0	0.0923076923077	0.0983606557377
29	3	36.6666666667	45.5070202154	0.109362687019	0.127368513382	6.0	0.0923076923077	0.0983606557377
30	2	101.0	0.0	0.301244492425	0.350842359589	101.0	1.55384615385	1.65573770492
31	2	82.0	19.0	0.244574736424	0.284842311745	82.0	1.26153846154	1.34426229508
32	2	146.5	85.5	0.436953644952	0.50889510574	146.5	2.25384615385	2.40163934426
33	1	3.0	0.0	0.00894785621063	0.0104210601858	3.0	0.0461538461538	0.0491803278689
34	1	5.0	0.0	0.0149130936844	0.017368433643	5.0	0.0769230769231	0.0819672131148