condition mean min max 4 h after light 1598.2620075 1526.302219 1670.221796 8 h after light 906.020564 895.30898 916.732148 12 h after light 1799.432799 671.257612 2927.607986 4 h after dark 892.860203 836.901411 948.818995 8 h after dark 1793.4180285 352.346226 3234.489831 12 h after dark 1696.302718 1696.302718 1696.302718