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).
Lori was more common in the past and has since settled at a lower, steady level. All-time it's been given to 575,971 U.S. babies, the 1,687th most common name by sound today, peaking at 36,996 in 1963, with 200 in 2025.
By sound, Lori also includes the spellings Laurie, Lorie, Lorrie, Lauri, Lorri, Loree, Lory.