condition mean min max 0 h after light 7.3317 5.18731 9.47609 4 h after light 2.74788 2.48729 3.00847 8 h after light 1.9884300000000001 1.86366 2.1132 4 h after dark 7.6578800000000005 7.19237 8.12339 8 h after dark 3.46612 2.42443 4.50781 12 h after dark 4.372065 4.17324 4.57089