condition mean min max 4 h after light 0.3087655 0.228939 0.388592 8 h after light 0.5325185 0.51161 0.553427 12 h after light 2.3096050000000004 2.11986 2.49935 4 h after dark 1.606725 1.44901 1.76444 8 h after dark 0.8203024999999999 0.761656 0.878949 12 h after dark 0.5519085 0.414526 0.689291