condition mean min max 2 h after light 2.7814 1.77339 5.25159 6 h after light 3.0710783333333334 1.5973 5.77265 10 h after light 3.646595 1.02866 7.17248 14 h after light 4.9144250000000005 1.51639 11.4928 18 h after light 3.73678 1.50129 8.48321 2 h after dark 3.3452465 0.684129 8.10416