condition mean min max 4 h after light 2062.0394443333334 1707.103333 2380.885 8 h after light 2756.424444333333 1410.523333 4253.05 12 h after light 3728.2422223333338 1718.026667 5170.663333 1.5 h after dark 4545.931111333333 2820.806667 6148.506667 5.5 h after dark 3725.2511113333335 2189.836667 4954.59 9.5 h after dark 2740.371111 1741.43 4101.4