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).
Natalia
Natalia climbed for decades and has been a steadily popular name ever since. All-time it's been given to 92,367 U.S. babies, the 284th most common name by sound today, peaking at 3,915 in 2006, with 2,102 in 2025.
By sound, Natalia also includes the spellings Natalya.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).