Yearly U.S. life expectancy and paassenger car registrations
A dataset with 40 observations on the following 3 variables.
||Average life expectancy at birth in the United States (in years)|
||Passenger vehicles registered in the United States (in millions)|
Yearly data on the average life expectancy for babies born and millions of cars registered in the United States over 40 years from 1970 to 2009
Vehicle registrations from US Census Bureau,
http://www.census.gov/compendia/statab/cats/transportation.html. Life expectancies from the Centers for Disease Control and Prevention, National Center for Health Statistics, Health Data Interactive, www.cdc.gov/nchs/hdi.htm, accessed April 7, 2012.