condition mean min max 4 h after light 0.6723665333333333 0.0878946 1.32795 8 h after light 0.22639673333333332 0.0579652 0.415716 12 h after light 0.3111509666666667 0.0287219 0.631502 4 h after dark 0.312114 0.100723 0.452189 8 h after dark 0.44746800000000003 0.377581 0.586914 12 h after dark 1.146972 0.931586 1.41663