The Swedish name statistics for 1800 to 1880 is our own evaluation of name data of the Swedish Census of 1880. The census gives quite a good overview of the names of people living in Sweden in the 19th Century. The data covers up to 80 % of people born in the decade 1870 to 1879 down to 16 % for the oldest evaluated decade 1800 to 1809. The reason for the decreasing coverage for older ages are both fatalities as well as emigration.
Even during the 18th century, some names became popular over time while others decreased in popularity. This is well visible over the evaluation period of 80 years, here shown for some common girls' names:
Notably, Anna has been the most prominent first name of the 19th century, with about 16 % of the girls named Anna, each throughout the complete evaluation period. 16 % means one out of six girls was named Anna, which is far more common than even the most popular first names of today.
Overall, the variation of first names was much smaller than it is today. The chart above illustrates the percentage of population which has a first name within the top x ranking at different points of time, around 1800, around 1870 and today (2017). E.g. for the male population, 50% of the people had a name within the top 8 most common names in the 19th century. The female names had a slightly larger overall variation, but also a higher concentration around the top 1 name, Anna. Below depicted in blue for comparison is the name distribution today showing a much higher variability, only about 12% of persons have a name within the top 10 of common names.