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).
Israel has climbed over the years and is holding near its high. All-time it's been given to 77,596 U.S. babies, the 513th most common name by sound today, peaking at 2,111 in 2007, with 1,151 in 2025.
By sound, Israel also includes the spellings Isreal.