sable	limon	argile	profondeur	classe
77.5	19.5	3	10.4	1
71.9	24.9	3.2	11.7	1
70	26.5	3.5	15.7	1
66.5	32.2	1.3	16.3	1
53.4	36.8	9.8	18.7	1
15.6	50.4	34	42.2	2
31.9	45.1	23	47	2
9.5	53.5	37	47.1	2
17.1	48	34.9	48.4	2
10.5	55.4	34.1	49.4	2
6.6	52.1	41.3	82.9	3
6.7	47.3	46	87.7	3
6	48.9	45.1	90.4	3
6.3	53.8	39.9	90.6	3
2.5	48	49.5	97.7	3