Solid line = floor (spellings that unambiguously belong to the group). Shaded band up to the dashed edge = ceiling (the most it could reach if every ambiguous spelling counted here).
Genesis climbed for decades and has been a steadily popular name ever since. All-time it's been given to 103,327 U.S. babies, the 167th most common name by sound today, peaking at 4,698 in 2016, with 4,032 in 2025.
By sound, Genesis also includes the spellings Jenesis.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).