condition mean min max 0 h after light 5.225105 5.18179 5.26842 2 h after light 4.8131699999999995 4.32583 5.30051 4 h after light 6.69979 6.32097 7.07861 8 h after light 9.64175 8.5028 10.7807 12 h after light 21.19375 18.7935 23.594 2 h after dark 19.328699999999998 19.3236 19.3338 4 h after dark 13.6533 12.949 14.3576 8 h after dark 9.95366 8.35392 11.5534 12 h after dark 5.53542 5.10107 5.96977