Global broadband prices and speeds revealed
 

The least expensive monthly subscription for always-on broadband was in Sweden, where $10.79 (£5.40) per month bought a 256kbps connection. The country with the most expensive entry point for broadband access was Mexico, where it cost $52.36 (£26.18) per month for 1mbps.

http://news.bbc.co.uk/2/hi/technology/6900697.stm

I call BS on those numbers because the value for Switzerland isn't a flatrate and it isn't available as seperate product.

Cheapest unbundled flatrate is 45 CHF for 3500/350, which is 27 €