FIGURE 1. Number of SNPs in dbSNP over time.
From the following article:
A haplotype map of the human genome
The International HapMap Consortium
Nature 437, 1299-1320 (27 October 2005)
doi:10.1038/nature04226
The cumulative number of non-redundant SNPs (each mapped to a single location in the genome) is shown as a solid line, as well as the number of SNPs validated by genotyping (dotted line) and double-hit status (dashed line). Years are divided into quarters (Q1–Q4).