condition mean min max 3 h after light 2.7990066666666666 2.46708 3.2134 6 h after light 4.53505 3.84932 5.60204 9 h after light 3.20389 3.04444 3.2943 12 h after light 3.19171 3.03143 3.39242 3 h after dark 12.310026666666666 9.29298 16.3313 6 h after dark 27.169700000000002 23.6291 31.1047 9 h after dark 15.5937 14.5936 17.3789 12 h after dark 5.521193333333334 4.63069 6.6227