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

June 30th, 2018

Time
Show
Ratings
A18-49
10:30pm Dragon Ball Super 893,000 576,000
11:00pm My Hero Academia 601,000 367,000
11:30pm Fooly Cooly Progressive 546,000 342,000
12:00am Pop Team Epic 437,000 266,000
12:30am Jojo’s Bizarre Adventure 431,000 264,000
1:00am Hunter X Hunter 386,000 234,000
1:30am Black Clover 377,000 238,000
2:00am Naruto Shippuden 379,000 265,000
2:30am Space Dandy 287,000 198,000
3:00am Cowboy Bebop 245,000 159,000
3:30am Lupin The Third 247,000 163,000

;
comparison

July 1st, 2017 (AoT Marathon)

Time
Show
Ratings
A18-49
11:00am Attack On Titan 825,000 486,000
11:30am 716,000 429,000
12:00am 664,000 406,000
12:30am 590,000 332,000
1:00am 488,000 259,000
1:30am 457,000 242,000
2:00am 467,000 260,000
2:30am 460,000 255,000
3:00am 465,000 279,000

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.