condition mean min max 2 h after light 2.4411476666666667 0.984396 4.34848 6 h after light 0.804291 0.0 1.73321 10 h after light 1.0015835 0.458442 1.51656 14 h after light 1.1242531666666666 0.549946 1.79695 18 h after light 1.0064828333333333 0.617297 1.36394 2 h after dark 0.979681 0.421949 1.55232