Table:
text: 1987 in film
Highest-grossing films (US domestic)
Highest-grossing films of 1987
Rank_ Title Studio Director Gross
13. Throw Momma from the Train Orion Danny DeVito $57,915,972
14. Dragnet Universal Tom Mankiewicz $57,387,516
15. RoboCop Orion Paul Verhoeven $53,424,681
16. Outrageous Fortune Touchstone Arthur Hiller $52,864,741
17. La Bamba Columbia Luis Valdez $52,678,820
18. Broadcast News Fox James L. Brooks $51,300,000
19. The Living Daylights United Artists John Glen $51,185,000
20. Eddie Murphy Raw Paramount Robert Townsend $50,505,655

Question: How does the Danny Devito-directed film rank among the highest-grossing films of 1987 (in the US)?

Question: What is the sum of the ranks for the 1987 highest-grossing films (US domestic) in 1987 among films?