condition mean min max 2 h after light 1.7116925 0.0 4.00756 6 h after light 7.0370566666666665 1.77475 21.3129 10 h after light 6.0112565 0.819909 14.1233 14 h after light 5.620308 0.308888 12.2143 18 h after light 3.8194183333333336 0.0 13.4928 2 h after dark 3.614207 0.464522 13.2065