Context: On average each Norwegian transported themselves for 70 minutes each day. In 2008 8% of passenger transport was made by public transport; road transport is the dominant mode of transport. It had risen to 10% in 2017. In 2014 22% of travel was on foot and 4% by bicycle. The transport sector was responsible for 4.1% of the Measures of national income and output and 6.6% of employment in 2006. According to the World Economic Forums Travel and Tourism Competitiveness Report 2013, Norway placed 83 out of 140 countries regarding quality of roads, 47 out of 122 regarding quality of railroad infrastructure, 25 out of 140 regarding quality of port infrastructure and 54 out of 140 regarding ground transport networks.

Question: Which did Norway rank higher in 2013, quality of roads or quality of port infrastructure?

Answer:
quality of port infrastructure