condition mean min max 0 h after light 2.94581 2.78815 3.10347 4 h after light 3.9531099999999997 3.63006 4.27616 8 h after light 2.868285 2.36514 3.37143 4 h after dark 3.737075 2.43406 5.04009 8 h after dark 6.2041699999999995 6.15361 6.25473 12 h after dark 2.9155100000000003 2.11848 3.71254