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	Output and performance measures

	2 Short Wave Audibility

	Short Wave Audibility (overall percentage scores)

		March 2000 Actual	March 2001 Target	March 2001 Actual


	Global	81	81	80


	Africa and the Middle East	86	86	82


	Americas	63	70	65


	Asia and the Pacific	79	79	79


	EurAsia	81	81	82


	Europe	85	85	82


	The audibility measurement is based on regular ratings of the best 大象传媒 World Service short-wave frequency in any given area. A weighted average score for each language and region is calculated and expressed as a percentage: 100% represents outstanding, while 70% is good-quality audibility. In practice, variations of up to 5% will not have a significant effect and the impact of even a 10% change will only be moderate.

	Variations in short-wave propagation are inevitable because of changing ionospheric conditions. Unusual solar activity throughout 2000/01 may have exaggerated this effect.



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