condition mean min max 4 h after light 2.37405 1.95057 2.79753 8 h after light 1.796515 1.38293 2.2101 12 h after light 2.06956 1.99077 2.14835 4 h after dark 2.5270533333333334 2.14101 3.14666 8 h after dark 2.55202 1.98446 3.05574 12 h after dark 2.77331 2.24436 3.2992