FYI, "All Time" doesn't work on this chart:
https://blockchain.info/charts/cost-per-transaction?timespan=all&showDataPoints=false&daysAverageString=1&show_header=true&scale=0&address=0

EDIT: This one seems problematic, too:
https://blockchain.info/charts/miners-operating-profit-margin?timespan=all&showDataPoints=false&daysAverageString=1&show_header=true&scale=0&address=