This is a great question - and great news - there is an app for that!!
Well, at least there is a web site.
Based on millions of recent test results from Speedtest.net, there is an index that compares and ranks consumer download speeds around the globe. Also plotted is the value is the rolling mean throughput in Mbps over the past 30 days where the mean distance between the client and the server is less than 300 miles. The following screenshot is from the web site called
We have taken a couple of snapshots over time. Here is March 2011 data:
Here is the September 2012 data:
This means, on average, bandwidth has increased 38% in 18 months.
Who has the fastest Internet? The US does not even make the top 10! Here was the data in Marcg 2011:
And here is the data in September 2012:
If you are wondering, the US is 34th as of September 2012, right behind Lichtenstein!
There is much more data at the site - and we encourage you to look at information by State and other worldwide data.