condition mean min max 4 h after light 950.8919585 819.689245 1082.094672 8 h after light 550.8941045 525.30898 576.479229 12 h after light 422.821303 396.053515 449.589091 4 h after dark 231.56579050000002 105.200709 357.930872 8 h after dark 175.8778615 170.157467 181.598256 12 h after dark 669.418875 669.418875 669.418875