Table (1 -A) : Development of (JIB) activities during the period (1980-2000)

Financial year	Total Assets	Total Deposits	Total financing and investment by JIB (1)	Total financing by conventional banks (2)
1980	15.5	11.6	6.8	563.9
1981	31.6	25.3	14.2	721 .3
1982	45.2	35.8	26.5	887.2
1983	71.5	58.6	37.6	1030.9
1984	102.0	82.8	63.0	1184.8
1985	126.8	102.8	71.0	1274.4
1986	161.7	127.6	95.5	1395.4
1987	197.4	158.5	109.0	1513.0
1988	222.6	177.8	124.1	1634.0
1989	242.3	187.2	144.1	1729.2
1990	244.8	190.3	148.9	1863.5
1991	356.7	296.9	193.1	1965.8
1992	435.3	369.5	243.1	2218.3
1993	528.3	420.6	306.7	2616.9
1994	570.0	462.1	356.1	3248.4
1995	621.9	508.5	418.2	3705.7
1996	618.7	502.3	422.1	3920.3
1997	650.6	513.4	461.8	3979.7
1998	706.7	527.8	481.4	4285.3
1999	756.7	543.6	490.2	4466.6
2000	853.3	564.6	531.8	4546.5

Required:

Calculate the ratios of Total financing and investment by JIB (1) to Total financing by conventional banks (2) since 1980 till 2000. Show your calculation. Analyze your findings arithmetically over the years evolution.