condition mean min max 0 h after light 7.484864999999999 6.78973 8.18 4 h after light 15.303799999999999 13.6511 16.9565 8 h after light 8.489435 8.03453 8.94434 4 h after dark 13.86805 12.4651 15.271 8 h after dark 9.7457 9.222 10.2694 12 h after dark 9.6952 8.509 10.8814