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US2021A_YRBLT
When structure first built

Codes and Frequencies


 

BBBBN/A (GQ)159,855
19391939 or earlier182,440
19401940 to 194967,955
19501950 to 1959143,980
19601960 to 1969145,005
19701970 to 1979206,592
19801980 to 1989182,160
19901990 to 1999171,058
20002000 to 2009178,513
20102010 to 2019113,885
202020206,665
202120212,147