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

May 5th 2018

Time
Show
Ratings
A18-49
10:30pm Dragon Ball Super 958,000 611,000
11:00pm DBZ Kai 812,000 486,000
11:30pm My Hero Academia 718,000 452,000
12:00am Fooly Cooly 577,000 380,000
12:30am Jojo’s Bizarre Adventure 476,000 317,000
1:00am Hunter X Hunter 444,000 287,000
1:30am Black Clover 392,000 247,000
2:00am Naruto Shippuden 372,000 227,000
2:30am Space Dandy 320,000 189,000
3:00am Cowboy Bebop 323,000 207,000
3:00am Ghost In The Shell 296,000 184,000

;
comparison

May 6th, 2017

Time
Show
Ratings
A18-49
11:00am Samurai Jack 1,358,000 789,000
11:30am Dragon Ball Super 986,000 567,000
12:00am DBZ Kai 925,000 519,000
12:30am Attack on Titan 771,000 447,000
1:00am Tokyo Ghoul 713,000 423,000
1:30am Hunter X Hunter 649,000 379,000
2:00am Gundam Unicorn 550,000 333,000
2:30am Naruto: Shippuden 539,000 327,000
3:00am Ghost In The Shell 515,000 299,000

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.