condition mean min max 4 h after light 4.968213333333334 4.9227 5.0237300000000005 8 h after light 5.193103333333333 4.9797199999999995 5.5355 12 h after light 4.962853333333333 4.88364 5.07156 4 h after dark 4.90913 4.79096 5.00606 8 h after dark 5.02148 4.835430000000001 5.147880000000001 12 h after dark 5.07559 4.86605 5.36362