Table 1.

Surveyed regions and response rate.

	NA	SA	Asia	OA	EU	Total
Percent of total responses (%)	58	6	10	3	23	100
Surveys sent (n)	113	12	33	5	89	252
Responses (n)	93	10	16	4	37	160
Regional responses (%)	82	83	48	80	42	63