Hi all,
Doing some fresh Wikidata statistics, I just noticed that about 107122 statements on Wikidata give "imported from Garrigàs" (Q11329) as their source (Garrigàs is a municipality in Spain, not noted for its export of statements). This seems to be caused by a systematic technical error, maybe in some bot or helper script that is used. Examples I found are certain Spanish category pages [1,2].
Merges have happened there, making it hard to trace the original source of the statement (if not the merge itself).
Markus
[1] https://www.wikidata.org/wiki/Q6259723 [2] https://www.wikidata.org/wiki/Q6275207
P.S. If you are interested, the following are currently the main reference items used in Wikidata (in dumps up to 20 Feb 2014) with how often they appear in references (listing all items with more than 10k appearances -- the long tail behind this is, well, long):
Q328 6849677 enwiki Q48183 1880595 dewiki Q10000 1793439 nlwiki Q30239 1721524 zhwiki Q206855 1400056 ruwiki Q15241312 1151388 Freebase Data Dumps Q8447 728891 frwiki Q11920 684660 itwiki Q8449 404117 eswiki Q54919 388811 Virtual International Authority File Q169514 354040 svwiki Q4026990 299225 JPL Small-Body Database Q48952 247059 fawiki Q82575 238941 Integrated Taxonomic Information System Q423048 188784 International Standard Name Identifier Q14005 182063 MusicBrainz Q191168 151431 cswiki Q654724 119838 SIMBAD Q1071027 113210 personal name Q11329 107122 Garrigàs Q15628808 95994 Q110874 89570 Q1345229 74950 Q15235026 62666 Q4330203 60916 Q565 54270 Q11921 52608 Q278487 51846 Q522039 48161 Q156705 36610 Q856636 36236 Q177837 34262 Q1648786 33224 Q1551807 32196 Q199698 30106 Q1344256 27151 Q13561342 23950 Q15728928 22372 Q32059 20230 Q6272367 19993 Q1662358 18394 Q191769 16761 Q4115441 16180 Q199700 15905 Q922063 15024 Q181163 14612 Q155214 14170 Q192582 13676 Q200060 12393 Q11918 12266 Q199693 12093 Q905695 10886 Q11913 10587 Q53464 10505 Q200180 10154