condition mean min max 0 h after light 0.4999515 0.333697 0.666206 4 h after light 9.9283 5.0358 14.8208 8 h after light 22.744 19.8926 25.5954 4 h after dark 4.59087 3.7077 5.47404 8 h after dark 6.31372 6.17549 6.45195 12 h after dark 2.2345034999999998 0.997967 3.47104