condition mean min max 4 h after light 0.0129648 0.0 0.0259296 8 h after light 0.0 0.0 0.0 12 h after light 0.0129289 0.0 0.0258578 4 h after dark 0.01146385 0.0 0.0229277 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0111504 0.0 0.0223008