condition mean min max 4 h after light 9.267465000000001 8.99455 9.54038 8 h after light 7.009180000000001 6.73099 7.28737 12 h after light 4.84768 4.47801 5.21735 4 h after dark 7.022914999999999 6.80314 7.24269 8 h after dark 11.375350000000001 11.2918 11.4589 12 h after dark 9.534695 9.26398 9.80541