Historical exchange rates.

	2017
	US$	¥	€
Jan	1.251	141.8	1.166
Feb	1.243	139.5	1.175
Mar	1.249	139.5	1.169
Apr	1.294	144.3	1.188
May	1.284	142.3	1.146
Jun	1.300	145.7	1.138
Jul	1.315	145.3	1.117
Aug	1.290	142.4	1.086
Sep	1.339	151.3	1.133
Oct	1.324	150.1	1.137
Nov	1.348	151.4	1.135
Dec

	2016
	US$	¥	€
Jan	1.424	172.5	1.314
Feb	1.388	157.0	1.272
Mar	1.437	161.5	1.265
Apr	1.461	155.3	1.275
May	1.461	162.1	1.311
Jun	1.339	137.7	1.206
Jul	1.322	134.9	1.183
Aug	1.311	135.3	1.176
Sep	1.297	131.2	1.157
Oct	1.219	127.8	1.118
Nov	1.248	141.1	1.174
Dec	1.234	144.3	1.172

	2015
	US$	¥	€
Jan	1.506	177.4	1.330
Feb	1.543	184.6	1.378
Mar	1.480	177.7	1.374
Apr	1.540	183.4	1.380
May	1.528	189.8	1.390
Jun	1.573	192.4	1.406
Jul	1.561	193.6	1.422
Aug	1.540	186.7	1.373
Sep	1.515	181.8	1.351
Oct	1.543	186.0	1.401
Nov	1.503	184.8	1.421
Dec	1.474	177.2	1.356