The estimated percentage of uninsured motorists trended down in 2010, 2011, and 2012, according to a new study from the Insurance Research Council (IRC). According to the study, titled Uninsured Motorists, 2014 Edition, 14.9% of drivers were uninsured in 2003. IRC’s most recent findings show that number has fallen to 12.6%.

In the study, the IRC estimates the percentage of uninsured drivers nationally and in individual states, based on a ratio of insurance claims made by individuals who were injured by uninsured drivers to claims made by those who were injured by insured drivers.

Nationally, the number of uninsured drivers peaked at 29.9 million in 2009 and moderately declined to 29.7 million in 2012. Statewide, the numbers varied. The states with the highest total uninsured drivers were California with 4.1 million; Florida with 3.2 million; and Texas with 1.6 million. The states with the highest estimated percentages of uninsured motorists are Oklahoma (26%), Florida (24%), and Mississippi (23%).

Discounting fatalities and total permanent disability claims, the IRC estimates that $2.6 billion was paid in the U.S. in 2012 for uninsured motorists claims. Despite the declining trend in uninsured rates over the last decade, the total claim payment amount is up 75% over the last 10 years and translated to $14 per insured individual in 2012.

See the infographic below for more information. (Click to enlarge.)