definiens: means, with respect to the Licensed Product in an y country in the Territory, that one or more Generic Products are or become commercially available in such country, and such Generic Products have a market share ( in the aggreg ate ) of [ * * * ] or greater in a Calendar Quarter provided that such Generic Competition shall be deemed to exist o nly for so long as unit volume sales of such Generi c Products in such country, as a percentage of total unit volu me sales of Licensed Products and such Generic Prod ucts, during any Calendar Quarter thereafter exceeds [ * * * ], and, if such Generic Product market share falls below [ * * * ] in such country, Generic Competition shall not thereafter b e deemed to exist until the unit volume market shar e of Generic Products again exceeds [ * * * ] . Market share is based on the aggregate market in such country of the Lic ensed Product and the Generic Products, based on units of the Licensed Product sold and units of such Generi c Products sold in the aggregate, as reported by Quintiles / IMS Health, or if such data are not available, such ot her reliable data source as reasonably agreed by the Parties