condition mean min max 0 h after light 12.73315 11.8731 13.5932 4 h after light 8.06302 7.76353 8.36251 8 h after light 4.46312 3.78988 5.13636 4 h after dark 9.48585 7.9409 11.0308 8 h after dark 9.453405 7.88271 11.0241 12 h after dark 11.546199999999999 11.3072 11.7852