http://www-nrd.nhtsa.dot.gov/Pubs/812037.pdf
Although the focus is booster seats, there are some interesting statistics about all ages and a particular focus on "premature graduation." Findings are based on direct observational studies with a representative sample.
Comparing 2013 with 2011, things are fairly stable overall, but with some pockets of good news. For example, the share of children between 1 and 3 years old in a RF carseat rose from 7% to 10% between 2011 and 2013. That's still not where we want to be, but that is nonetheless huge increase in just two years (over 40% increase in RF). The share of kids being prematurely moved into boosters also fell significantly. There are still a very troubling number of children who are completely unrestrained, however.
Although the focus is booster seats, there are some interesting statistics about all ages and a particular focus on "premature graduation." Findings are based on direct observational studies with a representative sample.
Comparing 2013 with 2011, things are fairly stable overall, but with some pockets of good news. For example, the share of children between 1 and 3 years old in a RF carseat rose from 7% to 10% between 2011 and 2013. That's still not where we want to be, but that is nonetheless huge increase in just two years (over 40% increase in RF). The share of kids being prematurely moved into boosters also fell significantly. There are still a very troubling number of children who are completely unrestrained, however.