condition mean min max 0 h after light 16.77 15.2274 18.3126 2 h after light 7.81898 6.97447 8.66349 4 h after light 7.913895 7.42958 8.39821 8 h after light 7.634715 7.0129 8.25653 12 h after light 9.29323 8.09466 10.4918 2 h after dark 10.808 10.2114 11.4046 4 h after dark 12.13275 11.4711 12.7944 8 h after dark 18.5333 18.1689 18.8977 12 h after dark 17.65245 16.3277 18.9772