condition mean min max 1 h after light 8.220781080999998 7.8611703639999995 8.580391797999999 3 h after light 7.936362488666667 4.8885297880000005 11.50568364 5 h after light 9.169080176666666 5.00984793 11.49742365 7 h after light 11.56592513 10.47173788 13.30670869 9 h after light 11.218535699333334 9.317467198 12.73504426 11 h after light 12.230392486666666 11.24402043 13.86092112 1 h after dark 12.722404312 7.911862146 15.24285154 3 h after dark 14.663489993333332 11.84335575 16.26936648 5 h after dark 14.608257296666666 11.39530229 17.29865715 7 h after dark 14.977955956666667 12.51804718 19.49539846 9 h after dark 18.155933996666665 17.88163216 18.60190047 11 h after dark 15.43571534 14.67150385 15.95078144