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).
Freya has been climbing in recent years. All-time it's been given to 23,679 U.S. babies, the 319th most common name by sound today, peaking at 2,650 in 2022, with 2,098 in 2025.
By sound, Freya also includes the spellings Freyja.
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).