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).
Reese climbed for decades and has been a steadily popular name ever since. All-time it's been given to 106,519 U.S. babies, the 188th most common name by sound today, peaking at 4,306 in 2012, with 3,799 in 2025.
By sound, Reese also includes the spellings Reece, Rhys.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).