Lost bag rate dips. Again.

Go ahead, check that bags. Chances are better than ever that is won't be lost.

Good news for air travelers who check their bags and worry about those bags getting to their destination.

According to the just-issued SITA 2018 Baggage Report, airlines around the world have once again improved the rate of baggage delivery, continuing a more than decade-long trend of improvement which has seen baggage mishandling drop by 70% since 2007.

The rate of bag mishandling has dropped, notes SITA, even though 2017 saw a rise in the number of passenger to more than 4 billion.

In 2017, the number of mishandled bags was 5.57 per thousand passengers, the lowest level ever recorded.

That’s good news, but mishandled bags cost the industry an estimated $2.3 billion in 2017. And it is of course a hassle if it is your bag that ends up delayed or lost.

So SITA is encouraging airlines to continue investing in end-to-end bag tracking.

“Over the last decade, we have seen significant improvements in bag management as airlines have taken advantage of technology,” said Barbara Dalibard, CEO, SITA, “End-to-end tracking produces data which reveals where improvements can be made in operational processes. While we won’t see a sudden change in 2018, it is a real turning point for the industry as airlines begin to unlock the value of the tracking data for the 4.65 billion bags they carry.”

 For a look at what happens to your checked bags once you hand it over at the check-in counter, see my recent At the Airport column on USA TODAY: The trip your luggage takes without you.