condition mean min max 3 h after light 0.034602 0.0 0.103806 6 h after light 0.0714409 0.0 0.13695 9 h after light 0.038951 0.0 0.116853 12 h after light 0.028412033333333333 0.0 0.0852361 3 h after dark 0.031363 0.0 0.094089 6 h after dark 0.0 0.0 0.0 9 h after dark 0.048072000000000004 0.0 0.144216 12 h after dark 0.0 0.0 0.0