condition mean min max 4 h after light 0.0609515 0.0 0.121903 8 h after light 0.1164227 0.0995364 0.133309 12 h after light 0.202191 0.161251 0.243131 4 h after dark 0.267171 0.21558 0.318762 8 h after dark 0.2648275 0.212987 0.316668 12 h after dark 0.103588 0.102333 0.104843