I have found an article related to Typhoon Rammasun back in 2002:
BBC NEWS | World | Asia-Pacific | Typhoons batter East Asia

My understanding is that they use the same names again in a few years time unless that particular tropical storm caused widespread disruption? For example, Katrina, Mitch and Andrew won't be used again after the devastation they caused, but smaller storms, such as Rammusan will be (or have been) used again.

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