condition mean min max 0 h after light 198.6565 193.272 204.041 4 h after light 180.0 165.378 194.622 8 h after light 190.3665 167.892 212.841 4 h after dark 284.086 275.124 293.048 8 h after dark 278.2835 275.264 281.303 12 h after dark 222.963 219.861 226.065