BEIRUT, Dec 24 (Reuters) - Lebanese President Michel Aoun said on Friday the country needs "six to seven years" to emerge from crisis. Lebanon"s economy has been in freefall since 2019, when a mountain of debt and political gridlock drove the nation into its deepest crisis since the 1975-1990 civil war. "We need six to seven years to get out of this crisis," Aoun said in a televised interview.