condition mean min max 0 h after light 12.351600000000001 10.6149 14.0883 2 h after light 7.818764999999999 6.37297 9.26456 4 h after light 8.840335 8.40955 9.27112 8 h after light 9.535720000000001 9.19787 9.87357 12 h after light 13.56645 13.1073 14.0256 2 h after dark 14.6904 13.5499 15.8309 4 h after dark 13.6593 12.089 15.2296 8 h after dark 12.3165 11.8575 12.7755 12 h after dark 11.722249999999999 11.5316 11.9129