"We made this monument out of 2,400 abstracted hours from real lives.
"Another part of me feels incredibly sad because this has become part of London life and I've never been able to cross the city without making a detour and see who's on it. It's become compulsive viewing."
Participants for the project were chosen at random by a computer from tens of thousands of entries.
Gormley said at the weekend he had achieved his goal of challenging perceptions of what constituted art.
"If it wasn't disturbing to people, it wouldn't be doing its job," he said.
"If it isn't contentious and doesn't get a mixed reaction, it's totally failing."
However, the crowds who turned out for the final morning of the project were positive.
"I've seen about 200 different people on the plinth," said Jay, from London.
"It's brought loads of people together and everybody's got to know one other and everybody's had a good time"
"I walk past the plinth twice a day every day," added Nadia.
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