Shooting was 18th at school in 2018

The shooting at a school in Parkland, Florida, was not exactly the first of this year.

In the United States there are almost as many firearms (300 million) as there are inhabitants (323 million). That means there are twice as many weapons per person than half a century ago.

The Americans make up 4.5 percent of the world's population, but possess 48 percent of the firearms that are owned by private individuals worldwide. Half of all weapons in the US are in the hands of only 3 percent of the population.