The top downloads list is a good indicator of what's of interest to lawyers year over year, and what issues are concerns in certain years in particular. (slaw.ca)
But his treatment was long and slow, and even today he has no memory of what happened in certain years of his life. (discovermagazine.com)
It appears that the problem was caused by data being missing for certain years for particular months. (theinconvenientskeptic.com)