How to read the band →
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).
Harlan
Harlan has stayed fairly steady in American naming for generations. All-time it's been given to 32,765 U.S. babies, the 880th most common name by sound today, peaking at 730 in 2023, with 671 in 2025.
By sound, Harlan also includes the spellings Harlen, Harlyn.
Rising