condition mean min max 4 h after light 2.461395 1.63243 3.29036 8 h after light 2.877325 2.87091 2.88374 12 h after light 5.660475 5.00898 6.31197 4 h after dark 8.21749 7.55221 8.88277 8 h after dark 6.77044 6.58195 6.95893 12 h after dark 4.9531600000000005 3.99595 5.91037