condition mean min max 4 h after light 144.140687 140.231049 148.050325 8 h after light 156.1979105 149.605626 162.790195 12 h after light 160.141186 139.050315 181.232057 4 h after dark 203.4538285 161.444831 245.462826 8 h after dark 249.576477 192.930455 306.222499 12 h after dark 201.234699 201.234699 201.234699