OECD Broadband Statistics, December 2005 In December 2005, four countries (Iceland, Korea, the Netherlands and Denmark) led the OECD in broadband penetration, each with more than 25 subscribers per 100 inhabitants. Iceland now leads the OECD with a broadband penetration rate of 26.7 subscribers per 100 inhabitants. Korea’s broadband market is advancing to the next stage of development where existing subscribers switch platforms for increased bandwidth. In Korea, fibre-based broadband connections grew 52.