Today, Open Knowledge released its global 2014 Open Data Index, refreshing its annual measure of the accessibility and availability of government releases of data online. When compared year over year, these indices have shown not only the relatives openness of data between countries but also the slow growth in the number of open data sets. Overall, however, the nonprofit found that the percentage of open datasets across all 97 surveyed countries (up from 63 in 2013) remained low, at only 11%.

“Opening up government data drives democracy, accountability and innovation,” said Rufus Pollock, the founder and president of Open Knowledge, in a statement. “It enables citizens to know and exercise their rights, and it brings benefits across society: from transport, to education and health. There has been a welcome increase in support for open data from governments in the last few years, but this year’s Index shows that real progress on the ground is too often lagging behind the rhetoric.”

The map below can be explored in interactive form at the Open Knowledge website.

Open Knowledge also published a refreshed ranking of countries. The United Kingdom remains atop the list, followed by Denmark and France, which moved up from number 12 in 2013. India moved into the top 10, from #27, after the relaunch of its open data platform.

Despite the rhetoric emanating from Washington, the United States is ranked at number 8, primarily due to deficiencies in open data on government spending and an open register of companies. Implementation of the DATA Act may help, as would the adoption of an open corporate identified by the U.S. Treasury.

Below, in an interview from 2012, Pollock talks more about the relationship between open data and open government.

More details and discussion are available at the Open Knowledge blog.