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).
Angelica is now well below its former popularity. All-time it's been given to 97,874 U.S. babies, the 1,107th most common name by sound today, peaking at 3,620 in 1992, with 406 in 2025.
By sound, Angelica also includes the spellings Anjelica.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).