Year	% of total labor force
1991	1.1692806585388669
1992	1.1151960328759791
1993	1.0783376347023428
1994	1.0941517588489524
1995	1.1073216104885504
1996	1.0755039632321046
1997	1.0496520403486245
1998	1.0278724752882324
1999	1.0070899129874316