Frequency Table (Histogram)
Bins	Midpoint	Abs. Frequency	Rel. Frequency	Cumul. Rel. Freq.	Density
[1840,1850[	1845	13	0.180556	0.180556	0.018056
[1850,1860[	1855	11	0.152778	0.333333	0.015278
[1860,1870[	1865	6	0.083333	0.416667	0.008333
[1870,1880[	1875	15	0.208333	0.625	0.020833
[1880,1890[	1885	4	0.055556	0.680556	0.005556
[1890,1900[	1895	1	0.013889	0.694444	0.001389
[1900,1910[	1905	7	0.097222	0.791667	0.009722
[1910,1920[	1915	4	0.055556	0.847222	0.005556
[1920,1930]	1925	11	0.152778	1	0.015278