condition mean min max 4 h after light 8.212858333333333 7.213725999999999 10.05644 8 h after light 4.351212333333334 1.757914 8.40806 12 h after light 10.769158000000001 9.248244 12.682030000000001 16 h after light 7.6676633333333335 4.581304 10.18542 4 h after dark 8.943786 5.871722 13.289639999999999 8 h after dark 6.193534 4.808631 8.924125