Cyfnod
20th century
9,890
1900-1999
5,032
21st century
4,751
1945-
4,705
Since 1945
3,108
1945-1989
3,100
19th century
2,819
1989-
2,692
1900 - 1999
2,384
2000-2099
2,131
Early works to 1800
1,685
18th century
1,223
1991-
1,179
Since 1989
1,162
1933-1945
1,002
2001-2009
983
20e siècle
977
17th century
928
1800-1899
914
Since 1900
817
Since 1991
752
1945-1953
735
2000 - 2099
712
1939-1945
710
2001-
665
1918-1945
664
1945-1991
640
1993-
629
1990-
597
1949-
579
1960-
569
1976-
545
16th century
539
21e siècle
531
1800-1999
524
1981-1989
518
1917-1945
511
1980-
510
1946-
509
2000-
477
Since 2000
476
1979-
434
1945 - 1989
423
1644-1912
416
1800 - 1899
412
1871-1918
411
1975-
411
To 1500
410
1912-1945
407
1700-1799
397
rhagor ...