Google Scholar searches for "e", "robot", and ""artificial intelligence""

	A	B	C	D
1	Year	Google Scholar results for the search "e"	Google Scholar results for the search "robot"	Google Scholar results for the search ""artificial intelligence""
2	1990	1,100,000	12,100	19,200
3	1991	1,140,000	13,200	21,600
4	1992	1,290,000	14,600	23,600
5	1993	1,340,000	16,500	24,900
6	1994	1,440,000	18,000	27,000
7	1995	1,730,000	19,200	28,100
8	1996	1,910,000	20,500	26,800
9	1997	1,920,000	22,100	31,800
10	1998	2,060,000	23,900	35,400
11	1999	2,370,000	26,900	41,100
12	2000	2,680,000	31,400	49,300
13	2001	2,600,000	35,300	53,500
14	2002	2,780,000	41,500	64,600
15	2003	3,110,000	49,900	73,400
16	2004	3,240,000	61,100	86,500
17	2005	3,160,000	68,600	103,000
18	2006	3,290,000	83,500	114,000
19	2007	3,260,000	92,000	109,000
20	2008	3,150,000	103,000	124,000
21	2009	2,950,000	115,000	136,000
22	2010	2,890,000	129,000	138,000
23	2011	2,640,000	125,000	166,000
24	2012	2,770,000	143,000	169,000
25	2013	2,580,000	157,000	168,000
26	2014	2,050,000	164,000	147,000
27	2015	1,660,000	170,000	145,000
28	2016	1,510,000	178,000	172,000
29	2017	1,550,000	186,000	213,000
30	2018	1,510,000	179,000	266,000
31	2019	1,420,000	161,000	268,000
32	2020	1,140,000	120,000	204,000
33	2021	504,000	128,000	158,000
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