Popularity (feminine) in the United States (all ages)
#604 in 1990
for Lou (feminine)
#1025 in 1990
for Lou (masculine)
Note: there is only one year's worth of data for this region, so a graph cannot be shown.
Numbers
| Lou (feminine) | |||
| Year | Rank | Percent Used | |
| 1990 | #604 | 0.020 | |
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