condition mean min max 0 h after light 1.254075 1.13382 1.37433 4 h after light 2.06851 1.91296 2.22406 8 h after light 4.610955000000001 3.70319 5.51872 4 h after dark 3.89724 3.4276 4.36688 8 h after dark 3.360145 2.86632 3.85397 12 h after dark 2.068315 1.37248 2.76415