condition mean min max 4 h after light 4.6225499999999995 4.45476 4.836119999999999 8 h after light 4.5262400000000005 4.43112 4.68686 12 h after light 4.51326 4.45231 4.57833 4 h after dark 4.540203333333333 4.4616 4.62453 8 h after dark 4.496756666666667 4.37815 4.59808 12 h after dark 4.515796666666667 4.42018 4.62213