Why it matters: Mass shootings have become more common, but fading public interest relieves pressure on lawmakers to address the underlying issues.

By the numbers: Google trends measures search interest on a scale of 0 to 100, with zero being the lowest amount of search interest possible and 100 being the most.

Search interest ranked higher than 5 out of 100 only lasted for two or three weeks for most shootings. Sandy Hook was an exception, with 10 non-consecutive weeks of Google interest higher than 5.