condition mean min max 4 h after light 182.7182315 171.512099 193.924364 8 h after light 192.288768 189.73361 194.843926 12 h after light 203.3181875 175.076114 231.560261 4 h after dark 231.9475265 202.055969 261.839084 8 h after dark 175.3527335 159.921629 190.783838 12 h after dark 145.18135 145.18135 145.18135