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).
Jane
Jane is now well below its former popularity. All-time it's been given to 410,149 U.S. babies, the 556th most common name by sound today, peaking at 10,520 in 1947, with 1,440 in 2025.
By sound, Jane also includes the spellings Jayne.
Rising
Source: U.S. Social Security Administration, “National data” baby-names files (1880–2025).