Popularity in the United States
Numbers
| Lou (feminine) | Lou (masculine) | |||||
| Year | Rank | Percent Used | Rank | Percent Used | ||
| 2023 | - | - | - | - | ||
| 2022 | - | - | - | - | ||
| 2021 | - | - | - | - | ||
| 2020 | - | - | - | - | ||
| 2019 | - | - | - | - | ||
| 2018 | - | - | - | - | ||
| 2017 | - | - | - | - | ||
| 2016 | - | - | - | - | ||
| 2015 | - | - | - | - | ||
| 2014 | - | - | - | - | ||
| 2013 | - | - | - | - | ||
| 2012 | - | - | - | - | ||
| 2011 | - | - | - | - | ||
| 2010 | - | - | - | - | ||
| 2009 | - | - | - | - | ||
| 2008 | - | - | - | - | ||
| 2007 | - | - | - | - | ||
| 2006 | - | - | - | - | ||
| 2005 | - | - | - | - | ||
| 2004 | - | - | - | - | ||
| 2003 | - | - | - | - | ||
| 2002 | - | - | - | - | ||
| 2001 | - | - | - | - | ||
| 2000 | - | - | - | - | ||
| 1999 | - | - | - | - | ||
| 1998 | - | - | - | - | ||
| 1997 | - | - | - | - | ||
| 1996 | - | - | - | - | ||
| 1995 | - | - | - | - | ||
| 1994 | - | - | - | - | ||
| 1993 | - | - | - | - | ||
| 1992 | - | - | - | - | ||
| 1991 | - | - | - | - | ||
| 1990 | - | - | - | - | ||
| 1989 | - | - | - | - | ||
| 1988 | - | - | - | - | ||
| 1987 | - | - | - | - | ||
| 1986 | - | - | - | - | ||
| 1985 | - | - | - | - | ||
| 1984 | - | - | - | - | ||
| 1983 | - | - | - | - | ||
| 1982 | - | - | - | - | ||
| 1981 | - | - | - | - | ||
| 1980 | - | - | - | - | ||
| 1979 | - | - | - | - | ||
| 1978 | - | - | - | - | ||
| 1977 | - | - | - | - | ||
| 1976 | - | - | - | - | ||
| 1975 | - | - | - | - | ||
| 1974 | - | - | - | - | ||
| 1973 | - | - | - | - | ||
| 1972 | - | - | - | - | ||
| 1971 | #951 | 0.008 | - | - | ||
| 1970 | #849 | 0.009 | - | - | ||
| 1969 | #801 | 0.009 | - | - | ||
| 1968 | #767 | 0.010 | - | - | ||
| 1967 | #753 | 0.010 | - | - | ||
| 1966 | #724 | 0.011 | - | - | ||
| 1965 | #656 | 0.012 | - | - | ||
| 1964 | #598 | 0.014 | - | - | ||
| 1963 | #496 | 0.019 | - | - | ||
| 1962 | #487 | 0.020 | - | - | ||
| 1961 | #447 | 0.023 | - | - | ||
| 1960 | #390 | 0.029 | #944 | 0.003 | ||
| 1959 | #358 | 0.034 | - | - | ||
| 1958 | #314 | 0.041 | #928 | 0.003 | ||
| 1957 | #309 | 0.042 | #888 | 0.003 | ||
| 1956 | #258 | 0.052 | - | - | ||
| 1955 | #232 | 0.061 | - | - | ||
| 1954 | #204 | 0.075 | - | - | ||
| 1953 | #207 | 0.074 | - | - | ||
| 1952 | #345 | 0.030 | - | - | ||
| 1951 | #389 | 0.024 | #943 | 0.003 | ||
| 1950 | #395 | 0.023 | - | - | ||
| 1949 | #374 | 0.025 | - | - | ||
| 1948 | #379 | 0.025 | - | - | ||
| 1947 | #355 | 0.028 | #938 | 0.003 | ||
| 1946 | #343 | 0.030 | #980 | 0.003 | ||
| 1945 | #341 | 0.030 | #927 | 0.004 | ||
| 1944 | #314 | 0.034 | - | - | ||
| 1943 | #330 | 0.032 | - | - | ||
| 1942 | #293 | 0.039 | #971 | 0.003 | ||
| 1941 | #286 | 0.041 | - | - | ||
| 1940 | #281 | 0.042 | - | - | ||
| 1939 | #277 | 0.044 | #904 | 0.004 | ||
| 1938 | #274 | 0.047 | - | - | ||
| 1937 | #269 | 0.049 | - | - | ||
| 1936 | #270 | 0.047 | - | - | ||
| 1935 | #269 | 0.048 | - | - | ||
| 1934 | #263 | 0.052 | - | - | ||
| 1933 | #265 | 0.051 | - | - | ||
| 1932 | #270 | 0.049 | #980 | 0.004 | ||
| 1931 | #290 | 0.042 | - | - | ||
| 1930 | #306 | 0.040 | - | - | ||
| 1929 | #308 | 0.041 | - | - | ||
| 1928 | #320 | 0.036 | - | - | ||
| 1927 | #303 | 0.040 | - | - | ||
| 1926 | #323 | 0.034 | - | - | ||
| 1925 | #337 | 0.031 | - | - | ||
| 1924 | #348 | 0.029 | - | - | ||
| 1923 | #356 | 0.027 | - | - | ||
| 1922 | #347 | 0.028 | - | - | ||
| 1921 | #377 | 0.025 | - | - | ||
| 1920 | #356 | 0.027 | - | - | ||
| 1919 | #361 | 0.027 | - | - | ||
| 1918 | #335 | 0.031 | - | - | ||
| 1917 | #338 | 0.030 | #964 | 0.005 | ||
| 1916 | #351 | 0.028 | - | - | ||
| 1915 | #354 | 0.028 | - | - | ||
| 1914 | #348 | 0.028 | #884 | 0.006 | ||
| 1913 | #342 | 0.030 | - | - | ||
| 1912 | #315 | 0.036 | #970 | 0.005 | ||
| 1911 | #316 | 0.035 | - | - | ||
| 1910 | #317 | 0.034 | #707 | 0.009 | ||
| 1909 | #307 | 0.038 | - | - | ||
| 1908 | #292 | 0.041 | #685 | 0.009 | ||
| 1907 | #312 | 0.037 | #778 | 0.008 | ||
| 1906 | #334 | 0.032 | - | - | ||
| 1905 | #276 | 0.046 | #666 | 0.009 | ||
| 1904 | #297 | 0.040 | - | - | ||
| 1903 | #266 | 0.048 | #696 | 0.009 | ||
| 1902 | #285 | 0.043 | - | - | ||
| 1901 | #304 | 0.038 | #858 | 0.006 | ||
| 1900 | #274 | 0.044 | #699 | 0.008 | ||
| 1899 | #251 | 0.051 | #548 | 0.011 | ||
| 1898 | #236 | 0.057 | #701 | 0.008 | ||
| 1897 | #267 | 0.046 | #584 | 0.011 | ||
| 1896 | #245 | 0.052 | #722 | 0.008 | ||
| 1895 | #252 | 0.051 | #739 | 0.007 | ||
| 1894 | #249 | 0.050 | #594 | 0.010 | ||
| 1893 | #222 | 0.061 | #650 | 0.008 | ||
| 1892 | #222 | 0.061 | #748 | 0.007 | ||
| 1891 | #231 | 0.055 | #700 | 0.007 | ||
| 1890 | #210 | 0.065 | #667 | 0.008 | ||
| 1889 | #210 | 0.063 | #446 | 0.014 | ||
| 1888 | #172 | 0.089 | #647 | 0.008 | ||
| 1887 | #167 | 0.095 | #583 | 0.009 | ||
| 1886 | #178 | 0.084 | #647 | 0.008 | ||
| 1885 | #158 | 0.095 | #521 | 0.011 | ||
| 1884 | #145 | 0.106 | #613 | 0.008 | ||
| 1883 | #136 | 0.118 | #556 | 0.010 | ||
| 1882 | #137 | 0.113 | #611 | 0.008 | ||
| 1881 | #137 | 0.115 | #442 | 0.014 | ||
| 1880 | #122 | 0.134 | #482 | 0.012 | ||
 |
|
|||||