dureza	sample
519,244	1
498,615	1
526,165	1
526,466	1
525,327	1
530,139	2
517,44	2
514,64	2
506,813	2
522,567	2
521,863	3
530,998	3
513,251	3
515,789	3
512,247	3
521,781	4
532,853	4
526,169	4
524,759	4
517,242	4
542,293	5
548,132	5
517,808	5
509,579	5
520,886	5
518,913	6
518,726	6
518,228	6
505,596	6
523,543	6
501,398	7
521,721	7
509,029	7
529,003	7
514,171	7
521,049	8
525,504	8
505,803	8
510,386	8
523,421	8
501,907	9
531,007	9
520,162	9
523,215	9
527,621	9
525,021	10
519,137	10
512,881	10
511,419	10
513,472	10
531,299	11
526,114	11
543,371	11
532,284	11
521,068	11
502,924	12
522,857	12
522,763	12
519,351	12
526,737	12
509,905	13
525,335	13
496,172	13
499,689	13
523,111	13
508,69	14
520,475	14
522,303	14
510,319	14
522,787	14
513,842	15
513,062	15
538,907	15
518,191	15
513,575	15
534,62	16
515,558	16
497,403	16
517,609	16
515,898	16
510,056	17
518,66	17
532,537	17
524,011	17
538,537	17
529,827	18
518,282	18
522,528	18
507,144	18
513,331	18
522,279	19
515,084	19
520,392	19
523,056	19
509,835	19
528,55	20
507,563	20
516,881	20
516,433	20
512,873	20