condition mean min max 4 h after light 11.193060666666666 9.796441999999999 13.353589999999999 8 h after light 6.451036333333334 1.486316 11.06598 12 h after light 6.388327666666667 4.8206690000000005 9.460835000000001 16 h after light 8.618056000000001 7.058960000000001 10.139710000000001 4 h after dark 10.559204666666668 5.658084 14.721420000000002 8 h after dark 12.906603333333333 11.5598 13.855920000000001