Enter the url of the website archived by Wayback Machine, hit the "Scan!" button and wait while the scanner prepares a list of all archived pages.
You can limit the results to a specific year only.
The sacnner returns maximum of 200,000 pages.
Then you can:
1.) copy all the URLs to clipboard and use MS Excel or another spreadsheet software to filter the list, then use the page text extractor to extract the page texts in bulk (max. 50 urls at once);
2.) click on any page and extract the text of that single page.