what is the launch date of the first ship on this chart?
11 july 1918
col : designation | keel laid | launched | commissioned | fate row 1 : pe-4 | 21 may 1918 | 15 september 1918 | 14 november 1918 | sold 11 june 1930 row 2 : pe-5 | 28 may 1918 | 28 september 1918 | 19 november 1918 | sold 11 june 1930 row 3 : pe-6 | 3 june 1918 | 16 october 1918 | 21 november 1918 | expended as target 30 november 1934 row 4 : pe-8 | 10 june 1918 | 11 november 1918 | 31 october 1919 | sold 1 april 1931 row 5 : pe-10 | 6 july 1918 | 9 november 1918 | 31 october 1919 | destroyed 19 august 1937 row 6 : pe-11 | 13 july 1918 | 14 november 1918 | 29 may 1919 | sold 16 january 1935 row 7 : pe-12 | 13 july 1918 | 12 november 1918 | 6 november 1919 | sold 30 december 1935 row 8 : pe-13 | 15 july 1918 | 9 january 1919 | 2 april 1919 | sold 26 may 1930 row 9 : pe-14 | 20 july 1918 | 23 january 1919 | 17 june 1919 | expended as target 22 november 1934 row 10 : pe-17 | 3 august 1918 | 1 february 1919 | 3 july 1919 | wrecked off long island, new york 22 may 1922 row 11 : pe-18 | 5 august 1918 | 10 february 1919 | 7 august 1919 | sold 11 june 1930 row 12 : pe-20 | 26 august 1918 | 15 february 1919 | 28 july 1919 | transferred to uscg late 1919 row 13 : pe-21 | 31 august 1918 | 15 february 1919 | 31 july 1919 | transferred to uscg late 1919 row 14 : pe-22 | 5 september 1918 | 10 february 1919 | 17 july 1919 | transferred to uscg late 1919 row 15 : pe-23 | 11 september 1918 | 20 february 1919 | 19 june 1919 | sold 11 june 1930 row 16 : pe-24 | 13 september 1918 | 24 february 1919 | 12 july 1919 | sold 11 june 1930 row 17 : pe-26 | 25 september 1918 | 1 march 1919 | 1 october 1919 | sold 29 august 1938 row 18 : pe-27 | 22 october 1918 | 1 march 1919 | 14 july 1919 | in service during wwii\nsold 4 june 1946 row 19 : pe-28 | 23 october 1918 | 1 march 1919 | 28 july 1919 | sold 11 june 1930 row 20 : pe-30 | 19 november 1918 | 8 march 1919 | 14 august 1919 | transferred to uscg late 1919 row 21 : pe-31 | 19 november 1918 | 8 march 1919 | 14 august 1919 | sold 18 may 1923 row 22 : pe-32 | 30 november 1918 | 15 march 1919 | 4 september 1919 | in service during wwii\nsold 3 march 1947 row 23 : pe-33 | 14 february 1918 | 15 march 1919 | 4 september 1919 | sold 11 june 1930 row 24 : pe-34 | 8 january 1919 | 15 march 1919 | 3 september 1919 | sold 9 june 1932 row 25 : pe-36 | 22 january 1919 | 22 march 1919 | 20 august 1919 | sold 27 february 1936 row 26 : pe-38 | 30 january 1919 | 29 march 1919 | 30 july 1919 | in service during wwii\nsold 3 march 1947 row 27 : pe-39 | 3 february 1919 | 29 march 1919 | 20 september 1919 | sold 7 june 1938 row 28 : pe-40 | 7 february 1919 | 5 april 1919 | 1 october 1919 | expended as target 19 november 1934 row 29 : pe-41 | 20 february 1919 | 5 april 1919 | 26 september 1919 | sold 11 june 1930 row 30 : pe-43 | 17 february 1919 | 17 may 1919 | 2 october 1919 | sold 26 may 1930 row 31 : pe-46 | 24 february 1919 | 24 may 1919 | 3 october 1919 | sold 10 december 1936 row 32 : pe-47 | 3 march 1919 | 19 june 1919 | 4 october 1919 | sold 30 december 1935 row 33 : pe-48 | 3 march 1919 | 24 may 1919 | 8 october 1919 | sold 10 october 1946 row 34 : pe-49 | 4 march 1919 | 14 june 1919 | 10 october 1919 | sold 20 september 1930 row 35 : pe-50 | 10 march 1919 | 18 july 1919 | 6 october 1919 | sold 11 june 1930 row 36 : pe-52 | 10 march 1919 | 9 july 1919 | 10 october 1919 | sold 29 august 1938 row 37 : pe-53 | 17 march 1919 | 13 august 1919 | 20 october 1919 | sold 26 august 1938 row 38 : pe-54 | 17 march 1919 | 17 july 1919 | 10 october 1919 | sold 26 may 1930
what is the launch date of the first ship on this chart?
Designation Keel Laid Launched Commissioned Fate
PE-1 7 May 1918 11 July 1918 27 October 1918 Sold 11 June 1930
PE-2 10 May 1918 19 August 1918 11 July 1918 Sold 11 June 1930
PE-3 16 May 1918 11 September 1918 11 November 1918 Sold 11 June 1930
PE-4 21 May 1918 15 September 1918 14 November 1918 Sold 11 June 1930
PE-5 28 May 1918 28 September 1918 19 November 1918 Sold 11 June 1930
PE-6 3 June 1918 16 October 1918 21 November 1918 Expended as target 30 November 1934
PE-7 8 June 1918 5 October 1918 24 November 1918 Expended as target 30 November 1934
PE-8 10 June 1918 11 November 1918 31 October 1919 Sold 1 April 1931
PE-9 17 June 1918 8 November 1918 27 October 1919 Sold 26 May 1930
PE-10 6 July 1918 9 November 1918 31 October 1919 Destroyed 19 August 1937
PE-11 13 July 1918 14 November 1918 29 May 1919 Sold 16 January 1935
PE-12 13 July 1918 12 November 1918 6 November 1919 Sold 30 December 1935
PE-13 15 July 1918 9 January 1919 2 April 1919 Sold 26 May 1930
PE-14 20 July 1918 23 January 1919 17 June 1919 Expended as target 22 November 1934
PE-15 21 July 1918 25 January 1919 11 June 1919 Sold 14 June 1934
PE-16 22 July 1918 11 January 1919 5 June 1919 Transferred to USCG late 1919
PE-17 3 August 1918 1 February 1919 3 July 1919 Wrecked off Long Island, New York 22 May 1922
PE-18 5 August 1918 10 February 1919 7 August 1919 Sold 11 June 1930
PE-19 6 August 1918 30 January 1919 25 June 1919 In service during WWII\nDestroyed 6 August 1946
PE-20 26 August 1918 15 February 1919 28 July 1919 Transferred to USCG late 1919
PE-21 31 August 1918 15 February 1919 31 July 1919 Transferred to USCG late 1919
PE-22 5 September 1918 10 February 1919 17 July 1919 Transferred to USCG late 1919
PE-23 11 September 1918 20 February 1919 19 June 1919 Sold 11 June 1930
PE-24 13 September 1918 24 February 1919 12 July 1919 Sold 11 June 1930
PE-25 17 September 1918 19 February 1919 30 June 1919 Capsized in Delaware Bay squall 11 June 1920
PE-26 25 September 1918 1 March 1919 1 October 1919 Sold 29 August 1938
PE-27 22 October 1918 1 March 1919 14 July 1919 In service during WWII\nSold 4 June 1946
PE-28 23 October 1918 1 March 1919 28 July 1919 Sold 11 June 1930
PE-29 18 November 1918 8 March 1919 20 August 1919 Sold 11 June 1930
PE-30 19 November 1918 8 March 1919 14 August 1919 Transferred to USCG late 1919
PE-31 19 November 1918 8 March 1919 14 August 1919 Sold 18 May 1923
PE-32 30 November 1918 15 March 1919 4 September 1919 In service during WWII\nSold 3 March 1947
PE-33 14 February 1918 15 March 1919 4 September 1919 Sold 11 June 1930
PE-34 8 January 1919 15 March 1919 3 September 1919 Sold 9 June 1932
PE-35 13 January 1919 22 March 1919 22 August 1919 Sold 7 June 1938
PE-36 22 January 1919 22 March 1919 20 August 1919 Sold 27 February 1936
PE-37 27 January 1919 25 March 1919 30 September 1919 Sold 11 June 1930
PE-38 30 January 1919 29 March 1919 30 July 1919 In service during WWII\nSold 3 March 1947
PE-39 3 February 1919 29 March 1919 20 September 1919 Sold 7 June 1938
PE-40 7 February 1919 5 April 1919 1 October 1919 Expended as target 19 November 1934
PE-41 20 February 1919 5 April 1919 26 September 1919 Sold 11 June 1930
PE-42 13 February 1919 17 May 1919 3 October 1919 Sold 11 June 1930
PE-43 17 February 1919 17 May 1919 2 October 1919 Sold 26 May 1930
PE-44 20 February 1919 24 May 1919 30 September 1919 Disposed of 14 May 1938
PE-45 20 February 1919 17 May 1919 2 October 1919 Sold 11 June 1930
PE-46 24 February 1919 24 May 1919 3 October 1919 Sold 10 December 1936
PE-47 3 March 1919 19 June 1919 4 October 1919 Sold 30 December 1935
PE-48 3 March 1919 24 May 1919 8 October 1919 Sold 10 October 1946
PE-49 4 March 1919 14 June 1919 10 October 1919 Sold 20 September 1930
PE-50 10 March 1919 18 July 1919 6 October 1919 Sold 11 June 1930
PE-51 10 March 1919 14 June 1919 2 October 1919 Sold 29 August 1938
PE-52 10 March 1919 9 July 1919 10 October 1919 Sold 29 August 1938
PE-53 17 March 1919 13 August 1919 20 October 1919 Sold 26 August 1938
PE-54 17 March 1919 17 July 1919 10 October 1919 Sold 26 May 1930
PE-55 17 March 1919 22 July 1919 10 October 1919 In service during WWII\nSold 3 March 1947
PE-56 25 March 1919 15 August 1919 26 October 1919 In service during WWII\nTorpedoed by U-853 off Portland, Maine, on 23 April 1945
PE-57 25 March 1919 29 July 1919 15 October 1919 In service during WWII\nSold 5 March 1947
PE-58 25 March 1919 2 August 1919 20 October 1919 Disposed of 30 June 1940
PE-59 31 March 1919 12 April 1919 19 September 1919 Sold 29 August 1938
PE-60 31 March 1919 13 August 1919 27 October 1919 Sold 29 August 1938
11 July 1918