Table 2. Estimated stock numbers.
Year\Age	1	2	3	4	5	6	7+
1999	53104	27861	7726	3970	2544	831	837
2000	46677	42066	17888	3209	1189	948	617
2001	31382	36901	26823	7282	893	398	519
2002	34926	23790	23482	11840	2237	295	301
2003	26876	27364	14341	10343	4115	801	215
2004	30001	20468	17183	6706	4035	1637	403
2005	25668	24077	13320	8201	2645	1678	849
2006	22765	20105	16336	6585	3284	1111	1061
2007	23790	18239	13321	7733	2470	1320	869
2008	25514	18972	12294	6178	2882	1059	941
2009	30092	19756	12329	5821	2381	1349	932
2010	37496	23885	12871	6095	2555	1247	1203
2011	42404	29584	16267	6657	2901	1518	1459
2012	39458	33390	20191	9050	3400	1806	1869
2013	34614	31132	24884	13116	5803	2455	2644
2014	34544	27639	23861	17328	9059	4469	3882
2015	34787	28254	21790	17346	12623	7152	6556
2016	33928	28198	22720	15894	12711	10105	10868
2017	30730	27146	21893	16063	11388	10140	16731