This article reviews the national clearance rate for rape, which has dropped from 62% in 1964 to 32% in 2017. Some of the decline is probably due to increased reporting by victims and more complete recording by police. Also, the FBI definition was expanded in 2013 and, most recently, #MeToo has caused a surge in…
— Read on gcordner.wordpress.com/2018/12/28/long-term-drop-in-solving-rape-cases/