condition mean min max 0 h after light 3.201615 2.74864 3.65459 2 h after light 16.15185 14.1265 18.1772 4 h after light 6.905 6.64594 7.16406 8 h after light 14.00555 11.3268 16.6843 12 h after light 18.9329 17.2998 20.566 2 h after dark 18.33895 14.3227 22.3552 4 h after dark 10.175740000000001 8.62988 11.7216 8 h after dark 6.372434999999999 4.99324 7.75163 12 h after dark 3.13707 2.94891 3.32523