Here is the answer ... http://cental.uclouvain.be/svalex/
An online searcheable and CSV-downloadable database from the Catholic University of Leuven, in Flanders, Belgium.
They write:
SVALex is a lexicon of receptive vocabulary for Swedish as a second/foreign language (SVA) that reports the normalized frequencies of words (lemmas) across 5 of the six levels of the CEFR (Common European Framework of Reference for Languages), excluding C2. Apart from information on single word usage, this list also contains multi-word expressions and information on their usage at different levels, something that is rarely present in the resources of this kind.
Here is the occurrence of some words and expressions
Note that e.g. the word "bil" occurs most often in documents rated A2, and that the noun "rättvisa" and the verb "överge" are considered to be more difficult words, as they don't occur in documents rated as A1/A2
You can search also online, word by word.
So here is an example : the occurrence of the Swedish word "bil" (car)