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

July 21th, 2018

Time
Show
Ratings
A18-49
10:30pm Dragon Ball Super 774,000 496,000
11:00pm My Hero Academia 537,000 326,000
11:30pm Fooly Cooly Progressive 399,000 252,000
12:00am Pop Team Epic 384,000 238,000
12:30am Jojo’s Bizarre Adventure 365,000 224,000
1:00am Hunter X Hunter 391,000 244,000
1:30am Black Clover 382,000 242,000
2:00am Naruto Shippuden 388,000 247,000
2:30am Space Dandy 316,000 206,000
3:00am Cowboy Bebop 305,000 203,000
3:30am Lupin The Third 296,000 202,000


July 22th, 2017

Time
Show
Ratings
A18-49
11:30am Dragon Ball Super 804,000 496,000
12:00am DBZ Kai 725,000 447,000
12:30am Attack on Titan 621,000 396,000
1:00am Tokyo Ghoul 565,000 354,000
1:30am Hunter X Hunter 500,000 319,000
2:00am Lupin The 3rd 472,000 314,000
2:30am Naruto: Shippuden 436,000 256,000
3:00am Ghost In The Shell 367,000 222,000
3:30am Samurai Jack 323,000 192,000

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.