This is higher than the US, but give that 127M Americans (40%) live in counties that are on the coast, it's probably not too hard to get things to them:
Not everyone living along a coast has an appropriate coast to establish a harbor sufficient for shipping. If you live in big sur you still get your crap from china delivered inland from the port of Los Angeles.
Where did I say that it was necessary? In the US there are lots of major ports all along the coast, which is where most of the population is. For the Pacific:
Nitpicking: Switzerland actually does have three ports that provide, protected by international law, access to the North Sea (via the Rhine) and the Black Sea (via the Rhine–Main–Danube canal). In terms of quantities, about 10% of imports are going through these ports, mainly bulk load.
* https://en.wikipedia.org/wiki/List_of_countries_by_rail_usag...
For the US it is 0.3%.
Given that CH is land-locked, it's not surprising that freight modal share is 46%, because it has to get inland from a port in some way:
* https://en.wikipedia.org/wiki/List_of_countries_by_rail_usag...
This is higher than the US, but give that 127M Americans (40%) live in counties that are on the coast, it's probably not too hard to get things to them:
* https://oceanservice.noaa.gov/facts/population.html
* https://www.livescience.com/18997-population-coastal-areas-i...
Heck, Los Angeles county has a population (10M) larger than CH (8.5M), and would be the 10th largest state (between NC and MI):
* https://en.wikipedia.org/wiki/List_of_states_and_territories...
So a good number of Americans can get goods pretty direct without long distance inland shipping.