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).
Ava has dropped sharply from its peak but is still widely used. All-time it's been given to 355,310 U.S. babies, the 30th most common name by sound today, peaking at 18,437 in 2007, with 7,961 in 2025.
By sound, Ava also includes the spellings Avah, Ayva.