Year	2010 = 100
1974	2.96856669530549
1975	3.38268174928329
1976	3.94794632417857
1977	4.27152009396934
1978	4.98644990641961
1979	5.52054453101666
1980	5.92600126548133
1981	6.4929975042921
1982	7.59013027876294
1983	8.7174434813052
1984	10.7271631340221
1985	13.5289953332746
1986	17.3861529927304
1987	22.8817120874147
1988	38.1555835730988
1989	68.7324216855785
1990	100
1991	148.002672442591
1992	228.877466352008
1993	318.347180465307
1994	376.396297373894