condition mean min max 4 h after light 8.457135000000001 5.80177 11.1125 8 h after light 6.060045000000001 5.88513 6.23496 12 h after light 4.555529999999999 4.19816 4.9129 4 h after dark 4.139123333333333 3.34888 5.13827 8 h after dark 10.37657 8.93111 11.5451 12 h after dark 6.358513333333334 5.83865 6.92293