a developed market. Refer to the heading "Beverage Volume," above. The revenue per unit sold in emerging and developing markets is generally less than in developed markets. The Pacific operating segment was also unfavorably impacted by shifts away from the at-work vending channel in our Japanese business. 

The unfavorable impact of currency fluctuations decreased net operating revenues by approximately 5 percent. The unfavorable impact of changes in foreign currency exchange rates was primarily due to a stronger U.S. dollar compared to most foreign currencies, including the euro, South African rand, British pound, Brazilian real, Mexican peso and Australian dollar, which had an unfavorable impact on the Eurasia and Africa, Europe, Latin America, Pacific and Bottling Investments operating segments. The unfavorable impact of a stronger U.S. dollar compared to the aforementioned currencies was partially offset by the impact of a weaker U.S. dollar compared to certain other foreign currencies, including the Japanese yen, which had a favorable impact on the Pacific operating segment. Refer to the heading "Liquidity, Capital Resources and Financial Position — Foreign Exchange." 

The percentage contribution of each operating segment has changed due to net operating revenues in certain operating segments growing at a faster rate compared to the other operating segments. Net operating revenue growth rates are impacted by sales volume, structural changes, price and product/geographic mix, and foreign currency fluctuations. In 2010, the percentage of the Company's net operating revenues contributed by our North America operating segment increased by 5.3 percent, primarily due to our acquisition of CCE's North American business and sales related to our new license agreements with DPS. In 2011, we expect the percentage contribution by our North America operating segment to increase from 2010 due to the full year impact of these structural items. During the fourth quarter of 2010, the first quarter of operation following our acquisition of CCE's North American business and the new license agreements with DPS, our North America operating segment contributed 45.8 percent of the Company's net operating revenues. Although the fourth quarter of 2010 may not be indicative of the full year 2011 percentage contribution, it provides trend information related to the potential future impact of these structural changes. 

In addition, in 2010, the percentage of the Company's net operating revenues contributed by our Bottling Investments operating segment decreased by 3.0 percent, primarily due to the deconsolidation of certain entities as a result of the Company's adoption of new accounting guidance issued by the FASB and the sale of our Norwegian and Swedish bottling operations to New CCE. Refer to the heading "Structural Changes, Acquired Brands and New License Agreements," above. 

The size and timing of structural changes are not consistent from period to period. As a result, anticipating the impact of such events on future net operating revenues, and other financial statement line items, usually is not possible. We expect structural changes to have an impact