condition mean min max 0 h after light 0.6600415 0.599454 0.720629 4 h after light 0.9003829999999999 0.855119 0.945647 8 h after light 1.255725 0.73225 1.7792 4 h after dark 0.8258654999999999 0.824237 0.827494 8 h after dark 0.7114510000000001 0.708466 0.714436 12 h after dark 0.711859 0.585609 0.838109