The demand for stamps is recessing. No companies are using stamps, they use franco labels or "Postage Paid" labels. Private persons who are the only one using stamps, are being harassed by the Post Offices; you are requested to pay higher fees and getting worse service. If you are not using the glued labels the Post Office is issuing you are being rewarded; you get lower postage costs, better service etc.
Short: Stamps are only issued today in order to make money for the Post Office. There is even no postal demand for stamps an you may buy Frama labels (labels printed with any value you want) in the post office without standing on a line in front of a post office counter.
Since 1997, when the Post Office rose the domestic postal fee with 35%, while the deflation was 0,2%, they issue fix value stamps. The stamps has no value indicated by numerals, but the text: Föreningsbrev (societies), ekonomibrev (2nd class mail), brev (1st class mail) and julpost (Christmas mail). The Post has promised that these stamps will be valid forever, no matter how much the Post will rise the fees in the future. This means that a stamp with the text BREV bought in 1997, can be used on the same postal item (domestic letter) in the year 2097 and 2197... This also means, that the arguments for issuing stamps now is very weak, and getting weaker. Due to the fix value stamps, the post office can reduce the quantity of stamps considerably.
If you are used to the U.S. Postal Service's speed of issuing stamps, or the German Post's, or maybe the Russian Post's; 50 stamps is not "much". But please bear in mind that Sweden has only 8'900'000 citizens, while the US has 263'800'000, Germany 80'000'000 and Russia 149'000'000.
A highest reasonable speed of issuing stamps, would for Sweden be about 25 or 30 as the very maximum. As the Post Office does everything to persuade all Swedish companies to use franco texts, an even slower speed would be recommended, or the Swedish stamps issued after 1995 can easily be black listed by the Féderation Internationale de Philatelie (FIP), as the stamps are issued without any postal demands. Stamps must be postally motivated, not issued just to make money for the Post Office.
The task of the FIP is (very briefly) to represent and help philatelists and philately, and recommend catalogue issuers about which stamps they should list.
If you want to collect stamps, you should never
collect the new issues. For your own best, start collecting stamps issed
before 1960 (if you would like to collect Sweden), and refuse the new
issues. New Swedish stamps are not issued for postal purposes, but
for making the rich Swedish Post Office even richer. If you buy stamps
from the Swedish Post Office, it is highly recommended to stop buying,
at least if you have the intention to invest or do a good business when
selling the stamps.