condition mean min max 0 h after light 13.23575 12.6876 13.7839 2 h after light 12.2057 12.1272 12.2842 4 h after light 10.148475000000001 9.34345 10.9535 8 h after light 8.338 7.93391 8.74209 12 h after light 15.7784 15.081 16.4758 2 h after dark 10.4844 10.4232 10.5456 4 h after dark 9.91305 9.86914 9.95696 8 h after dark 17.04175 16.5397 17.5438 12 h after dark 13.31545 12.0524 14.5785