condition mean min max 0 h after light 40.2076 38.676 41.7392 4 h after light 77.2737 76.4655 78.0819 8 h after light 96.78045 87.3839 106.177 4 h after dark 102.1955 101.151 103.24 8 h after dark 91.6786 87.0218 96.3354 12 h after dark 52.77775 42.7169 62.8386