"argued throughout" is correct and usable in written English.
You can use it when you want to describe the way an opinion or idea has been expressed, either repeatedly or consistently. For example: "The professor argued throughout the lecture that racism is still a major issue in the US."
It has argued throughout that its aim has been to "empower" them.
They have argued throughout that it is unfair to punish individual athletes if they can prove they are clean.
Prosecutors have argued throughout the trial, now in its sixth week, that it was Officer Brian Smith, 31, who sprayed Mr. Faison.
In one of the cardinal themes of the book, Greenstock argued: "Throughout the whole Iraq saga the UK never had a significant impact on US policy formulation".
They argued throughout the weekend -- over the buffet dinner, over mint tea and over the fax machine spewing out messages from across the world.
To add insult to injury, the way he has campaigned has been diametrically opposite to how he has argued throughout about how the party should.
Harry and Wanda argue throughout the story.
Stiglitz argues throughout that powerful special interests have distorted the world economic order and the international institutions that run it.
A police spokesman said the couple had been arguing throughout the day Thursday over the feeding of their 2-year-old son, Trey.
In the early 1980s, and I would argue throughout the second half of the last century, the literary novel was perceived to be the prince of art forms, the cultural capstone and the apogee of creative endeavour.
The outspoken economist published an annotated version of the deal memorandum on his website on Monday, arguing throughout the 62-page document that most of the measures imposed on Greece would make the country's dire economic situation worse.
