What is league average ops each year for the last 20 years?

	LEAGUE	OPS	SEASON	G	W%	W	L	AB	R	H	2B	3B	HR	RBI	BB	HBP	SO	SB	CS	PA	TB	XBH	SH	SF	IBB	GIDP	AVG	OBP	SLG
1	NL	.761	2006	1,421	.489	1,267	1,323	88,844	12,337	23,501	4,834	561	2,840	11,748	8,600	1,030	17,426	1,515	610	100,383	37,977	8,235	1,190	719	881	2,039	.265	.334	.427
2	AL	.776	2006	1,260	.512	1,162	1,106	78,497	11,262	21,572	4,301	391	2,546	10,743	7,247	787	14,229	1,252	500	87,669	34,293	7,238	461	677	529	1,906	.275	.339	.437
3	NL	.757	2007	1,423	.496	1,286	1,308	89,489	12,208	23,796	4,898	505	2,705	11,664	8,576	934	17,449	1,564	506	100,796	37,819	8,108	1,045	752	791	2,063	.266	.334	.423
4	AL	.761	2007	1,260	.505	1,145	1,123	78,294	11,114	21,181	4,299	433	2,252	10,593	7,503	821	14,740	1,354	496	87,802	33,102	6,984	495	689	532	1,920	.271	.338	.423
5	NL	.744	2008	1,420	.491	1,271	1,317	88,595	11,741	23,071	4,729	478	2,608	11,203	8,816	856	18,050	1,482	547	99,995	36,580	7,815	1,049	679	780	1,985	.260	.331	.413
6	AL	.756	2008	1,260	.510	1,157	1,111	78,119	10,844	20,901	4,285	408	2,270	10,338	7,521	816	14,834	1,317	488	87,619	32,812	6,963	477	686	530	1,898	.268	.336	.420
7	NL	.739	2009	1,421	.495	1,283	1,307	87,884	11,481	22,741	4,606	561	2,482	10,927	8,926	865	18,282	1,429	591	99,531	35,915	7,649	1,138	718	770	1,979	.259	.331	.409
8	AL	.764	2009	1,261	.505	1,147	1,123	77,965	10,938	20,783	4,131	388	2,560	10,437	7,694	725	15,309	1,541	542	87,529	33,370	7,079	497	648	409	1,817	.267	.336	.428
9	NL	.723	2010	1,422	.497	1,288	1,304	87,886	11,211	22,423	4,470	498	2,404	10,688	8,411	822	19,092	1,454	589	98,800	35,101	7,372	1,006	675	759	1,918	.255	.324	.399
10	AL	.734	2010	1,260	.504	1,142	1,126	77,467	10,097	20,131	4,016	368	2,209	9,600	7,367	727	15,214	1,505	540	86,725	31,510	6,593	538	626	457	1,802	.260	.327	.407
11	NL	.710	2011	1,421	.498	1,290	1,300	88,119	10,691	22,263	4,394	487	2,281	10,159	8,032	816	18,900	1,679	642	98,744	34,474	7,162	1,137	640	759	1,802	.253	.319	.391
12	AL	.730	2011	1,260	.502	1,139	1,129	77,586	10,117	20,004	4,005	411	2,271	9,645	6,986	738	15,588	1,600	619	86,474	31,644	6,687	530	634	472	1,721	.258	.323	.408
13	NL	.718	2012	1,422	.494	1,280	1,312	87,814	10,929	22,283	4,453	558	2,434	10,370	7,813	769	19,808	1,728	635	98,048	35,154	7,445	1,024	628	634	1,840	.254	.318	.400
14	AL	.731	2012	1,260	.507	1,150	1,118	77,437	10,088	19,780	3,808	369	2,500	9,628	6,896	725	16,618	1,501	501	86,108	31,826	6,677	455	595	421	1,774	.255	.320	.411
15	NL	.703	2013	1,365	.498	1,211	1,219	82,690	9,730	20,768	4,039	424	2,157	9,243	7,106	838	18,374	1,265	494	92,103	32,126	6,620	920	549	575	1,872	.251	.315	.389
16	AL	.725	2013	1,366	.502	1,220	1,212	83,380	10,525	21,325	4,183	348	2,504	10,029	7,534	698	18,336	1,428	513	92,745	33,716	7,035	463	670	443	1,860	.256	.320	.404
17	NL	.694	2014	1,365	.495	1,202	1,228	82,491	9,600	20,562	4,005	459	2,025	9,109	6,929	822	19,196	1,370	543	91,726	31,560	6,489	886	598	514	1,755	.249	.312	.383
18	AL	.706	2014	1,365	.505	1,228	1,202	83,123	10,161	21,033	4,132	390	2,161	9,636	7,091	830	18,245	1,394	492	92,180	32,428	6,683	457	679	471	1,854	.253	.316	.390
19	NL	.713	2015	1,365	.493	1,198	1,232	82,652	9,996	20,947	4,076	480	2,275	9,508	7,026	776	19,165	1,320	531	91,776	32,808	6,831	747	575	552	1,878	.253	.316	.397
20	AL	.730	2015	1,364	.507	1,231	1,197	82,836	10,651	21,159	4,166	459	2,634	10,142	7,047	826	18,281	1,185	533	91,819	34,145	7,259	453	657	399	1,861	.255	.318	.412
21	NL	.734	2016	1,364	.494	1,198	1,228	82,635	10,774	20,977	4,100	502	2,657	10,249	7,723	881	19,886	1,388	553	92,521	34,052	7,259	675	607	590	1,802	.254	.322	.412
22	AL	.744	2016	1,364	.506	1,229	1,199	82,926	10,970	21,299	4,154	371	2,953	10,496	7,365	770	19,096	1,149	448	92,018	35,054	7,478	350	607	342	1,917	.257	.321	.423
23	NL	.748	2017	1,365	.496	1,205	1,225	82,533	11,139	20,985	4,203	461	2,935	10,657	8,044	879	20,310	1,255	476	92,663	34,915	7,599	653	554	609	1,846	.254	.325	.423
24	AL	.753	2017	1,365	.504	1,225	1,205	83,034	11,443	21,230	4,194	334	3,170	10,901	7,785	884	19,794	1,272	458	92,589	35,602	7,698	272	614	361	1,958	.256	.324	.429
25	NL	.722	2018	1,366	.503	1,224	1,208	82,723	10,631	20,403	3,993	457	2,685	10,116	8,049	919	21,001	1,215	490	92,864	33,365	7,135	564	609	605	1,694	.247	.318	.403