Long description

This is a graph of the annual duration of allowed tundra travel for oil exploration activities. The horizontal axis is year from 1970 to 2015 and there are ticks every 5 years. The vertical axis is days: the minimum is 0 days, the maximum is 250 days, and there are ticks every 50 days. The first data point is in 1970 when about 190 days were allowed. There are points for most years after this until 2012. Despite some variability, the general trend over the annual measurements is downwards. As well as the actual data point, there is a best fit line that shows the trend over time. The best fit line has a value of 203 days in 1970 and 120 days in 2013.