tl;dr: You can find your Google Search account history at https://history.google.com/history/?hl=en
Here is my account history, which is pretty nice for me to look at and I am excited what insight it brings in the future:
Clicking on the Manage History link also brings up some cool stuff! I love the analytics it gave for my account history, as you can see I am most active on Tuesdays at the 1pm hour. Pretty cool! I am also glad there are days that I am not dark blue for 76+ searches...I am trying to periodically go "offline" :)
So, just click on https://history.google.com/history/?hl=en to find out your Google Search History analytics.