Less than 7%

well , all you have to do is play the game's make you're monsters health and happiness go up ..

The accident at Fukushima Daiichi was classified level 7 on the INES scale on April 11, 2011. Level 7 is the highest level, deemed an incident "With major release of radioactive material with widespread health and environmental effect requiring implementation of planned and extended countermeasures". Only Chernobyl and Fukushima Daiichi have been rated level 7.

The accident was initially rated as level 4, and then raised to level 5. Level 7 was set after consideration of the multiple units involved. For more information, please see the Related Link below.

Weedle evolves at level 7.
level 7

Your should always aim for excellent health.