condition mean min max 4 h after light 1733.096045 1164.926603 2301.265487 8 h after light 1180.5862550000002 889.770518 1471.401992 12 h after light 1117.6117534999998 749.529912 1485.693595 4 h after dark 4289.4890235 1090.67817 7488.299877 8 h after dark 6644.020821 3701.297339 9586.744303 12 h after dark 6408.755183 6408.755183 6408.755183