condition mean min max 0 h after light 1.25065 1.24428 1.25702 4 h after light 1.21054 1.08994 1.33114 8 h after light 1.1929349999999999 1.15302 1.23285 4 h after dark 0.8862680000000001 0.611626 1.16091 8 h after dark 1.3885299999999998 1.15366 1.6234 12 h after dark 1.1852 1.13272 1.23768