Articles, R+D expenditure and percentage	Period	Total
Number of articles	2004	32,746
Number of articles	2003	29,949
Number of articles	2002	28,519
Number of articles	2001	26,322
Number of articles	2000	24,984
Number of articles	1999	25,109
Number of articles	1998	23,783
Number of articles	1997	22,077
Number of articles	1996	20,080
Number of articles	1995	18,283
Number of articles	1994	16,214
Number of articles	1993	15,309
Number of articles	1992	13,824
Number of articles	1991	11,903
Number of articles	1990	10,688
Number of articles	1989	10,007
Number of articles	1988	9,342
Number of articles	1987	8,815
Number of articles	1986	8,033
Number of articles	1985	6,956
Number of articles	1984	6,218
Number of articles	1983	5,747
Number of articles	1982	4,967
Number of articles	1981	4,182
Number of articles by 100/researchers FTE public sector	2004	48
Number of articles by 100/researchers FTE public sector	2003	46
Number of articles by 100/researchers FTE public sector	2002	49
Number of articles by 100/researchers FTE public sector	2001	44
Number of articles by 100/researchers FTE public sector	2000	46
Number of articles by 100/researchers FTE public sector	1999	55
Number of articles by 100/researchers FTE public sector	1998	52
Number of articles by 100/researchers FTE public sector	1997	54
Number of articles by 100/researchers FTE public sector	1996	50
Number of articles by 100/researchers FTE public sector	1995	51
Number of articles by 100/researchers FTE public sector	1994	45
Number of articles by 100/researchers FTE public sector	1993	48
Number of articles by 100/researchers FTE public sector	1992	46
Number of articles by 100/researchers FTE public sector	1991	41
Number of articles by 100/researchers FTE public sector	1990	40
Number of articles by 100/researchers FTE public sector	1989	43
Number of articles by 100/researchers FTE public sector	1988	41
Number of articles by 100/researchers FTE public sector	1987	45
Number of articles by 100/researchers FTE public sector	1986	44
Number of articles by 100/researchers FTE public sector	1985	42
Number of articles by 100/researchers FTE public sector	1984	38
Number of articles by 100/researchers FTE public sector	1983	36
Number of articles by 100/researchers FTE public sector	1982	32
Number of articles by 100/researchers FTE public sector	1981	26
Public expenditure on R+D/number of articles	2004	124
Public expenditure on R+D/number of articles	2003	125
Public expenditure on R+D/number of articles	2002	114
Public expenditure on R+D/number of articles	2001	111
Public expenditure on R+D/number of articles	2000	104
Public expenditure on R+D/number of articles	1999	94
Public expenditure on R+D/number of articles	1998	93
Public expenditure on R+D/number of articles	1997	92
Public expenditure on R+D/number of articles	1996	97
Public expenditure on R+D/number of articles	1995	98
Public expenditure on R+D/number of articles	1994	106
Public expenditure on R+D/number of articles	1993	112
Public expenditure on R+D/number of articles	1992	115
Public expenditure on R+D/number of articles	1991	105
Public expenditure on R+D/number of articles	1990	100
Public expenditure on R+D/number of articles	1989	88
Public expenditure on R+D/number of articles	1988	79
Public expenditure on R+D/number of articles	1987	69
Public expenditure on R+D/number of articles	1986	64
Public expenditure on R+D/number of articles	1985	60
Public expenditure on R+D/number of articles	1984	59
Public expenditure on R+D/number of articles	1983	58
Public expenditure on R+D/number of articles	1982	59
Public expenditure on R+D/number of articles	1981	57
Global production percentage	2004	2.9
Global production percentage	2003	2.8
Global production percentage	2002	2.8
Global production percentage	2001	2.7
Global production percentage	2000	2.5
Global production percentage	1999	2.6
Global production percentage	1998	2.5
Global production percentage	1997	2.4
Global production percentage	1996	2.2
Global production percentage	1995	2.1
Global production percentage	1994	2.0
Global production percentage	1993	2.0
Global production percentage	1992	1.9
Global production percentage	1991	1.7
Global production percentage	1990	1.6
Global production percentage	1989	1.5
Global production percentage	1988	1.3
Global production percentage	1987	1.2
Global production percentage	1986	1.1
Global production percentage	1985	1.0
Global production percentage	1984	0.9
Global production percentage	1983	0.9
Global production percentage	1982	0.8
Global production percentage	1981	0.7