Human Rights of Our Employees Performance Data Summary 2005-2008

	2008	2007	2006	2005
Percentage of employees who took Know the Code training*	90	90	NA	NA
Percentage of employees represented by an independent trade union or covered by a collective bargaining agreement	20	20	21	20

^*Know the code was first implemented globally in 2007.

In 2006 through 2008, Merck did not identify any operations at significant risk of forced or compulsory labor, incidents of child labor, or violations of the right to exercise freedom of association and collective bargaining.

In 2008, Merck appointed a new Senior Director, Global Labor Relations, who has overall responsibility for developing labor rights policy and a management compliance system globally.