Approximately 31 Mt (or 67%) of the total amount of PET produced in 2007 was used to make polyester fiber...

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Notes:

… 12.5 Mt (or 27%) went to plastic bottles, 2 Mt (or 5%) was converted into films and sheets and 0.4 Mt (1%) was used for injection molded products.

Cited in a peer-reviewed journal but cannot track original source.

Primary Source:

Secondary Source:

2007 - https://onlinelibrary.wiley.com/doi/full/10.1002/bbb.1368