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     EUROPEAN CETACEAN BYCATCH CAMPAIGN  | 
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     Incidence of spills - Tonnes by cause, 1974-2001  | 
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     Figure 4: Incidence of spills less than 7 tonnes by cause, 1974-2001  | 
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     Figure 5: Incidence of spills 7-700 tonnes by cause, 1974-2001  | 
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     Figure 6: Incidence of spills greater than 700 tonnes by cause, 1974-2001  | 
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