Reporting its full-year results to end January 1, the group also revealed a 13% increase in underlying pre-tax profit to £873m.
It added that all of its major brands had increased during the period, and that the group had gained market share in 16 out of its 20 markets.
Like-for-like sales increased by 6.3% for the period.
In the UK, Cadbury said that sales had increased 2% for the year, while organic chocolate brand Green and Black’s, which it acquired in May last year, had increased by 49%.
Todd Stitzer, chief executive officer of Cadbury Schweppes, said: “In 2006 we will continue the good progress we have made over the last two years.”
He added: “Commodity costs remain challenging with oil prices staying high and sweetener and aluminium prices increasing in recent months. We expect to more than offset these increases through a combination of pricing and cost reduction initiatives.”