condition mean min max 4 h after light 4.422656666666667 2.618493 7.62185 8 h after light 1.9940309999999999 1.5115969999999999 2.344973 12 h after light 1.351626 1.2705739999999999 1.439905 16 h after light 2.7794326666666667 2.439505 3.255299 4 h after dark 2.2534686666666666 2.1166490000000002 2.479939 8 h after dark 1.5055373333333333 1.4519879999999998 1.5347030000000002