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Sequence archives

RefSeq curated nucleotide records

NCBI / RefSeq

150M
records · 2026-09-07
Gompertz
best-fit model
199M
projected 2028
163K66M133M199M200520092013201720212025199M 2028
Gompertz (S-curve) fitbest fit (AICc)N(t) = L·e^{−e^{−k(t − t₀)}}
carrying capacity L 1.0Bsteepness k 0.073 / yrinflection t₀ 2035 0.9993forecast 199M by 2028

Forecast = 10% of the 22-yr record (2.2 yr ahead). Anchored on the latest value; levels off toward L ≈ 1.0B.

Daterecords
2026-09-07150,352,592
2026-08-24149,693,317
2026-08-17149,442,002
2026-08-10149,261,063
2026-08-03148,787,551
2026-07-27148,235,354
2026-07-20147,690,531
2026-07-13147,252,697
2026-07-06147,043,342
2026-06-24146,863,552
2026-01-01134,045,664
2025-01-01117,135,672
2024-01-0199,217,809
2023-01-0182,264,971
2022-01-0170,052,014
2021-01-0157,966,926
2020-01-0147,456,133
2019-01-0138,899,623
2018-01-0130,969,736
2017-01-0124,224,850
2016-01-0117,496,304
2015-01-0111,319,336
2014-01-014,943,175
2013-01-012,616,977
2012-01-012,097,674
2011-01-011,680,515
2010-01-011,268,879
2009-01-011,020,607
2008-01-01720,127
2007-01-01429,360
2006-01-01321,638
2005-01-01162,780

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