Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[0,20[	10	839	0.977855	0.977855	0.048893
[20,40[	30	2	0.002331	0.980186	0.000117
[40,60[	50	2	0.002331	0.982517	0.000117
[60,80[	70	1	0.001166	0.983683	5.8e-05
[80,100]	90	14	0.016317	1	0.000816