condition mean min max 1 h after light 7.5837590079999995 6.357294295 8.810223721 3 h after light 9.123734185 8.341733292 9.643492069 5 h after light 12.989936963333333 12.04749145 13.48166926 7 h after light 18.441817046666667 17.35525788 19.02076633 9 h after light 18.684595876666666 15.38128723 20.96430119 11 h after light 21.519730003333333 15.05220391 26.11942361 1 h after dark 21.823519806666667 19.96112009 24.50981241 3 h after dark 17.979564319999998 16.20157745 20.11135883 5 h after dark 15.525137656666669 12.96965326 16.91252641 7 h after dark 14.808257809999999 14.14605132 15.29103232 9 h after dark 16.34781333666667 15.52169306 17.44330459 11 h after dark 14.993322693333333 13.5671971 16.24219081