wartosc_cechy  liczba_obserwacji
36.8  0
38.4  0
40  0
41.6  0
43.2  0
44.8  0
46.4  0
48  0
49.6  1
51.2  3
52.8  4
54.4  7
56  8
57.6  9
59.2  10
60.8  12
62.4  10
64  10
65.6  8
67.2  7
68.8  4
70.4  3
72  2
73.6  1
75.2  0
76.8  0
78.4  0
80  0
81.6  0
283.2  1