condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.041955 0.0 0.125865 9 h after light 0.0 0.0 0.0 12 h after light 0.15235474999999998 0.0 0.355977 3 h after dark 0.098109 0.0 0.294327 6 h after dark 0.04238 0.0 0.12714 9 h after dark 0.036038 0.0 0.108114 12 h after dark 0.2430905 0.145742 0.340439