condition mean min max 0 h after light 8.142455 6.08001 10.2049 2 h after light 15.1677 10.6711 19.6643 4 h after light 16.3281 16.049 16.6072 8 h after light 7.72223 7.49853 7.94593 12 h after light 11.11892 8.19524 14.0426 2 h after dark 11.37639 9.05918 13.6936 4 h after dark 8.435870000000001 8.37822 8.49352 8 h after dark 12.448550000000001 11.9132 12.9839 12 h after dark 6.83995 6.75689 6.92301