"STUDY"	"WAVELGTH"	"DATE"
1	532	1874
2	535	1884
3	495	1888
4	527	1890
5	505	1898
6	505	1898
7	503	1907
8	506	1909
9	509	1911
10	520	1912
11	514	1920
12	504	1922
13	515	1926
14	498	1927
15	500	1928
16	506	1931
17	528	1934
18	530	1935
19	512	1935
20	515	1939