NOAA: Tornadoes and Tornado Deaths Plummeting In The U.S.
'U.S. tornado deaths peaked 90 years ago in 1925, the year the Tri-State tornado destroyed many towns in Illinois, Kentucky and Missouri. Since then, tornado deaths have plummeted to record lows.'
https://stevengoddard.wordpress.com/2015/03/31/tornadoes-and-tornado-deaths-plummeting-in-the-us/