condition mean min max 0 h after light 0.0584557 0.0390168 0.0778946 4 h after light 0.0383999 0.0 0.0767998 8 h after light 0.0192662 0.0 0.0385324 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0191791 0.0 0.0383582 12 h after dark 0.114567 0.038895 0.190239