condition mean min max 4 h after light 219.755724 170.066125 269.445323 8 h after light 222.106131 204.518667 239.693595 12 h after light 195.4013095 187.119285 203.683334 4 h after dark 204.388084 203.544111 205.232057 8 h after dark 215.2750565 205.232057 225.318056 12 h after dark 216.004504 216.004504 216.004504