condition mean min max 4 h after light 4.14257 3.94349 4.34165 8 h after light 3.1322650000000003 3.11172 3.15281 12 h after light 4.658465 4.62657 4.69036 4 h after dark 5.409075 5.12788 5.69027 8 h after dark 5.38951 5.3557 5.42332 12 h after dark 4.447965 4.36064 4.53529