condition mean min max 2 h after light 4.682370000000001 4.48589 5.03744 6 h after light 6.5220400000000005 6.18186 6.92598 10 h after light 8.074086666666666 7.66612 8.61583 2 h after dark 9.03464 8.59782 9.47259 6 h after dark 9.173813333333333 9.09145 9.29223 10 h after dark 7.1747 6.38979 7.87359