condition mean min max 4 h after light 10.45665 10.322610000000001 10.5976 8 h after light 9.606723333333333 9.43169 9.79374 12 h after light 9.438873333333333 9.29186 9.61433 4 h after dark 9.0846 8.97374 9.19862 8 h after dark 9.719893333333333 9.644169999999999 9.843960000000001 12 h after dark 10.16583 10.10905 10.233410000000001