condition mean min max 1 h after light 8.4681515735 6.530190077 10.40611307 3 h after light 9.219044099333333 8.385086397 9.955433688 5 h after light 11.329623201333334 8.940348924 14.83141213 7 h after light 11.872340396 8.423286747999999 14.39500041 9 h after light 14.36408147 13.02045018 16.09560983 11 h after light 15.02731588 13.86469328 16.43727818 13 h after light 14.578019326666666 11.38199068 17.48470601 15 h after light 13.186808163333334 11.62201397 16.18773217 1 h after dark 15.585463923333334 14.69401612 16.4417142 3 h after dark 18.048220656666665 13.95662782 21.52144249 5 h after dark 19.45281822 16.838427 21.30562816 7 h after dark 28.03159292666667 25.50654035 31.23306857