set style data l;

set xlabel "date";
set ylabel "frequency (per million)";
set xrange [*:*]
set yrange [0:*];
unset grid;
;
set title "\"\@können\" [slice=5 norm=date+class win=1]";
;
;
plot "-" title "Schulbuch";
1645	766.683022571148
1650	383.341511285574
1655	255.561007523716
1660	0
1665	0
1670	0
1675	0
1680	0
1685	0
1690	93.3706816059757
1695	93.3706816059757
1700	93.3706816059757
1705	26.2908459425614
1710	26.2908459425614
1715	26.2908459425614
1720	107.388316151203
1725	222.75325122001
1730	222.75325122001
1735	198.047634304583
1740	254.574888454698
1745	451.897703414453
1750	394.643913593782
1755	339.442145877333
1760	244.056130102083
1765	383.67290297404
1770	422.848397817031
1775	511.682902324716
1780	594.931116602973
1785	629.839000216141
1790	652.47842681547
1795	532.100555317815
1800	480.503270241388
1805	411.963628019907
1810	402.131663401013
1815	371.771271525389
1820	338.778556203288
1825	334.986306207335
1830	333.562398297044
1835	365.197104090548
1840	363.748784787123
1845	378.129835820639
1850	336.252837977457
1855	339.259446676457
1860	333.873072632844
1865	317.602191177619
1870	291.943067973943
1875	261.654289925482
1880	273.070320491174
1885	281.335272003502
1890	303.425158997438
1895	321.878692329347
1900	349.821374816664
1905	369.972840727198
1910	381.732494148102
1915	398.613188599111
1920	405.410582485364
e