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).
Summer
Summer has been climbing in recent years. All-time it's been given to 99,899 U.S. babies, the 391st most common name by sound today, peaking at 3,036 in 1977, with 2,005 in 2025.
By sound, Summer also includes the spellings Sommer, Somer.
Rising