Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[-80,-60[	-70	1	0.002688	0.002688	0.000139
[-60,-40[	-50	10	0.026882	0.02957	0.001389
[-40,-20[	-30	63	0.169355	0.198925	0.00875
[-20,0[	-10	105	0.282258	0.481183	0.014583
[0,20[	10	116	0.311828	0.793011	0.016111
[20,40[	30	49	0.13172	0.924731	0.006806
[40,60[	50	10	0.026882	0.951613	0.001389
[60,80[	70	5	0.013441	0.965054	0.000694
[80,100]	90	1	0.002688	0.967742	0.000139