The figures are pretty dire:
In 1965, there were 58,632 priests in the U.S. with 94 percent of them(By the way, odd that this story was found in the medical section of phys.org!)
in active ministry; in 2014, there were 38,275 priests with only 68
percent in active ministry. In 2009, the average age of a priest was 63,
whereas the average age in 1970 was 35. By 2019, half of all active
priests will be at the minimum retirement age of 70.