condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.0187762 0.0 0.0375524 8 h after light 0.0 0.0 0.0 12 h after light 0.0 0.0 0.0 2 h after dark 0.0 0.0 0.0 4 h after dark 0.01841035 0.0 0.0368207 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0