Frequency of apparition by century of Centuries
 
CENTURIE # ----->
1
2
3
4
5
6
7
8
9
10
Total
XVIth century 
8
4
 8
17 
7
14
11
8
10
12
99
XVIIthcentury 
5
7
 4 
6 
5 
 7
5
8
16
9
63
XVIIIthcentury 
18
17
6 
13
15
11
3
12
10
5
105
XIXth century 
27
23
23
21 
10
14
6
10
17
13
151
XXth century
23
 26
29
15
11
16
4
3
7
13
130
Future (2000-3797)
19
 23
30
28 
52
38
13
59
40
48
302
Total 
100
100
100
100
100
100
42
100
100
100
942
*Linked location