condition mean min max 3 h after light 8.367486666666666 7.43252 9.41995 6 h after light 8.125043333333334 7.02122 9.94204 9 h after light 11.60745 8.17615 16.0423 12 h after light 9.43394 5.62303 13.9127 3 h after dark 19.439533333333333 17.7378 20.6585 6 h after dark 16.0217 12.0017 19.445 9 h after dark 9.450890000000001 6.97969 13.7345 12 h after dark 6.99673 5.72206 9.00956