I looked back on my records, and for 2016, I had a return of about 8.4%, so it wasn't a bad year overall. But, for me at least, most of my gains seemed to come during the second half of the year.
My portfolio performance went through a bit of a rough patch from around mid 2014 through mid 2016, basically a lot of ups and downs, but a mostly sideways trend overall. To put a dollar figure into it, at the end of June 2014, my assets were around $970K, but at the end of Jun 2016, I was around $1,070K. Once you factor in additional investments over that period, the rise wasn't much at all. I think there were also a couple of ~10% corrections during that period, too.
I think much of my aggravation with that particular period was that I was coming off of a bit of a euphoria, from 2012, 2013, and the first half of 2014. I had also popped the $700K barrier in 2012, the $800K in 2013, and finished out 2013 right at $900K. So the magical $1M barrier seemed SOOOO close.