Sorry. I should have explained the point of me doing that.
I was interested in finding out what movies reached the top ten in different decades for each week of the year, and charts for the 70s and all the prior years since
Variety began logging box office grosses aren't even on Wikipedia anymore. You have to cite everything you dump on there, so when people did this before, they had no sources for a lot of those years. They definitely used to have pages for the years before 1981. They removed those, because the site Box Office Mojo (mostly) has all the known data for 1981 to now, but there's little factual input for the previous years, so not having enough data would make the articles not look complete.
When I found out you could get chart archives from some guy on Amazon for 7.99 GBP each, I thought it was a good way to find out what films topped the box office, and there's way too many top ten films to discover, so I just listed the ones that got to number one, and left it at that for now. I'll perhaps make lists for the top ten films too, but that won't be for a good little while. There's more to do, sure. But that's a lot of typing.
Of course, the research was tricky because the films listed don't display the genre, only the gross, year and what time of the year it was in the rankings. So I had to just do various searches to determine what the theme for the films were.
You'd be surprised how many people are interested in the history of the box office. Just like with music.
Too long, likely didn't read. I know.