condition mean min max 4 h after light 1041.9936405 992.490187 1091.497094 8 h after light 920.150916 888.840585 951.461247 12 h after light 961.8605230000001 908.529996 1015.19105 4 h after dark 832.124127 817.246966 847.001288 8 h after dark 833.4163765000001 811.137249 855.695504 12 h after dark 1078.936837 1078.936837 1078.936837