condition mean min max 4 h after light 1403.983876 1083.043388 1724.924364 8 h after light 1552.2684559999998 1475.252427 1629.284485 12 h after light 1519.384415 1434.068588 1604.700242 4 h after dark 1251.8780000000002 1041.468654 1462.287346 8 h after dark 1059.440324 946.472793 1172.407855 12 h after dark 1025.359005 1025.359005 1025.359005