Overall Growth of Released Structures Per Year

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YearTotal Number of Entries AvailableNumber of Structures Released Annually
19761313
19773623
1978426
19795311
19806916
19818516
198211732
198315336
198417522
198519520
198621318
198723825
198829153
198936574
1990507142
1991694187
1992886192
19931582696
199428711289
19953812941
199649851173
199765501565
199886072057
1999109632356
2000135902627
2001164132823
2002194092996
2003235604151
2004287105150
2005340515341
2006404626411
2007476027140
2008545106908
2009618037293
2010695577754
2011775007943
2012862688768
2013956199351
20141052079588
20151144899282
201612534310854
201713647211129
2018136594122