All data obtained from @SonOfTheBronx on Twitter:
Son Of The Bronx/Programming Insider

Dec 16th, 2017

Time
Show
Ratings
A18-49
10:30am Dragon Ball Super 1,236,000 697,000
11:00am DBZ Kai 1,103,000 623,000
11:30am Black Clover 836,000 480,000
12:00am Jojo’s Bizarre Adventure 617,000 385,000
12:30am Gundam IBO 501,000  302,000
1:00am Hunter X Hunter 468,000 276,000
1:30am Lupin The 3rd 422,000  248,000
2:00am Naruto Shippuden 437,000  274,000
2:30am Outlaw Star 384,000 248,000
3:00am Cowboy Bebop 340,000 222,000
3:00am Ghost In The Shell 303,000 213,000


comparison

Dec 17th, 2016

Time
Show
Ratings
A18-49
12:00am DBZ Kai 1,405,000 906,000
12:30am Jojo’s Bizarre Adventure 1,095,000 719,000
1:00am Gundam IBO 937,000 626,000
1:30am Hunter X Hunter 824,000 545,000
2:00am Naruto: Shippuden 761,000 503,000
2:30am One Piece 700,000 483,000
3:00am One Punch Man 517,000 517,000

If you want more data, you can check my spreadsheet here. That will have further data including per year difference and A18-49 differences.

Let us know what you think in the comments below about the ratings.