Check out CRAN downloads from RStudio logs

Interactive, downloadable Graphs for packages and countries

Weekly Top Ten Charts and Best Results, past and present

Data is based on daily logs from RStudio's CRAN mirror and commences from the first full week in early November 2012. The growth in volume will be impacted by increased RStudio usage and may not reflect total CRAN activity

Some packages will be downloaded as dependencies

There are strange weekly variatons which I have yet to investigate

The charts are based on the Highcharts javascript library which is free for non-commercial uses and the tables on the DataTables plugin for jQuery The R package rCharts which enables access to Highcharts amongst many similar JS libraries is being developed by Ramnath Vaidyanathan and Thomas Reinholdsson. They have both provided invaluable assistance in creating this app.