Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[4000,6000[	5000	1	0.013889	0.013889	7e-06
[6000,8000[	7000	18	0.25	0.263889	0.000125
[8000,10000[	9000	27	0.375	0.638889	0.000188
[10000,12000[	11000	12	0.166667	0.805556	8.3e-05
[12000,14000[	13000	7	0.097222	0.902778	4.9e-05
[14000,16000[	15000	2	0.027778	0.930556	1.4e-05
[16000,18000[	17000	3	0.041667	0.972222	2.1e-05
[18000,20000]	19000	2	0.027778	1	1.4e-05