Table 3. Estimates of stock size in numbers (millions)
Year\Age	0	1	2	3	4+
1988	19419.7	7379.4	4118.6	1947.3	769.7
1989	35729.1	9173.2	2720.6	1389.0	769.7
1990	34124.3	16877.2	3286.8	882.6	537.9
1991	35999.7	16119.2	6385.2	1148.1	355.4
1992	47205.1	17005.0	6394.1	2378.7	478.3
1993	31407.1	22298.1	6645.6	2334.2	980.5
1994	29810.0	14835.7	9342.9	2667.1	1011.5
1995	40535.4	14081.3	6145.7	3691.9	1146.3
1996	49745.3	19147.6	5668.2	2335.6	1554.4
1997	25996.3	23498.0	7597.7	2112.5	973.3
1998	31630.4	12279.8	9475.3	2894.3	890.6
1999	36787.3	14941.1	4904.9	3563.2	1211.8
2000	30609.4	17377.1	6020.8	1866.8	1501.4
2001	45798.0	14458.9	7216.4	2387.2	803.8
2002	43860.2	21633.4	6010.6	2865.2	1028.6
2003	56077.4	20718.1	8812.5	2321.5	1216.7
2004	42647.9	26489.1	8539.5	3458.6	994.2
2005	53545.9	20145.4	10749.9	3281.5	1464.8
2006	38920.8	25293.3	8166.7	4124.8	1388.7
2007	32705.8	18384.9	10305.0	3155.0	1751.8
2008	16510.7	15449.1	7476.5	3971.0	1338.2
2009	10759.4	7799.1	5972.5	2689.5	1624.1
2010	13325.4	5082.4	2988.4	2122.7	1092.9
2011	18366.8	6294.5	1926.5	1046.6	855.9
2012	15894.8	8675.9	2202.1	605.0	398.4
2013	37351.7	7508.2	3035.4	691.6	230.3
2014	12938.7	17643.7	2620.3	950.1	262.8
2015	29776.9	6111.8	6520.8	886.6	376.2