Table 3. Estimates of stock size in numbers (millions)
Year\Age	0	1	2	3	4+
1988	21295.2	6974.7	3717.3	1377.4	307.8
1989	24257.6	10059.2	3245.3	923.9	307.8
1990	34801.1	11458.5	4645.4	586.2	142.4
1991	29209.0	16438.9	5295.8	867.6	93.9
1992	30447.3	13797.3	7639.8	1252.0	182.9
1993	20995.5	14382.3	6435.1	2101.2	314.9
1994	28095.9	9917.5	6725.4	1977.3	601.3
1995	38705.8	13271.5	4642.1	2154.4	594.0
1996	20739.8	18283.3	6192.2	1298.0	552.3
1997	22954.9	9796.8	8515.9	1608.4	305.4
1998	24761.9	10843.1	4574.0	2449.6	426.2
1999	19327.8	11696.7	5045.1	1135.7	546.8
2000	29542.2	9129.8	5454.2	1376.1	282.9
2001	36691.7	13954.7	4265.9	1620.9	378.8
2002	35239.5	17332.0	6511.4	1195.6	416.7
2003	37237.7	16645.9	8088.1	1833.6	309.1
2004	35614.2	17589.8	7786.3	2518.2	532.8
2005	43740.7	16823.0	8200.5	2104.5	620.6
2006	34267.9	20661.6	7854.3	2357.1	557.2
2007	21649.4	16187.0	9647.5	2267.0	627.1
2008	10972.6	10226.5	7580.0	3148.4	695.9
2009	13270.9	5183.1	4779.0	2267.7	873.4
2010	16102.0	6268.7	2421.6	1415.3	621.6
2011	14752.0	7606.1	2925.0	678.6	363.8
2012	13439.0	6968.3	3532.4	671.4	138.2
2013	45272.7	6348.1	3229.7	744.4	123.8
2014	7085.5	21385.3	2937.1	631.2	125.7
2015	24204.9	3347.0	9640.0	189.6	29.3