condition mean min max 4 h after light 138.3555 131.053 145.658 8 h after light 59.09439999999999 53.9813 64.2075 12 h after light 20.79165 16.1127 25.4706 4 h after dark 6.598974999999999 6.11192 7.08603 8 h after dark 17.01425 16.7696 17.2589 12 h after dark 69.00575 66.6797 71.3318