Note that this does mean all journeys, not just commuters. It's very much easier to get confident young adult commuters to cycle than to convince pensioners to cycle, or convince parents that it is safe for their children to cycle, or to convince people to do their shopping by bike.
It's easy to see why cycling has continued to be more attractive as the population of the city continues to rise at about 1.5% per year. It simply gets better here for cyclists all the time. The pace of cycle path building in and around the city continues to be brisk. Everything that was started last year has been completed. New things are now being done. We've new routes to the East and North East as well as to the West. Many paths inside the city have been upgraded, and we're looking forward in particular to being able to ride on a new recreational route nearing completion near our home.
There are many other posts about Assen, which show other aspects of what it is like to live here.
2010 update: The link to the local government article no longer works. When this was pointed out to me, I wrote an updated article.
The photos show some of the cycle parking on a typical day in the city centre. I have absolutely no idea how many official spaces there are for bikes, but it can of course never be quite enough. Assen doesn't have the highest cycling rate in the world. That honour goes to Groningen, a few km North of here. However, it is one of the many towns in the Netherlands which has a higher cycling rate than anywhere in any other country.