Statistics show that global tea output exceeds 2.5 million tons, of which 90 % is fully fermented black tea, 8 % unfermented green tea, and 2 % is semi-fermented oolong tea.
根據估計，茶的全球產量超過二百五十萬噸，其中百分之九十是全發酵的紅茶，百分之八是不發酵的綠茶，百分之二為「半發酵」的烏龍茶。