condition mean min max 0 h after light 7.058075 6.67526 7.44089 2 h after light 5.769145 5.6596 5.87869 4 h after light 6.751785 5.94308 7.56049 8 h after light 7.74319 6.52118 8.9652 12 h after light 6.891895 6.4489 7.33489 2 h after dark 7.38103 5.81631 8.94575 4 h after dark 7.6205099999999995 7.55961 7.68141 8 h after dark 6.07794 5.57952 6.57636 12 h after dark 5.57563 4.38522 6.76604