Best chart I've found for a while...
05/03/20,710,621 | 05/23/17,241,009 | 06/24/16,525,440 | 04/24/16,432,621 | 03/27/00,775,105 | 02/01/99,413,260
05/04/20,452,313 | 05/24/17,109,237 | 06/25/16,117,635 | 04/25/16,175,158 | 03/28/00,927,359 | 02/02/99,228,093
05/05/20,681,151 | 05/25/17,027,695 | 06/26/16,895,146 | 04/26/16,327,474 | 03/29/00,725,061 | 02/03/99,953,151
05/06/20,171,277 | 05/26/17,437,400 | 06/27/16,574,418 | 04/27/16,490,491 | 03/30/00,851,435 | 02/04/99,432,460
05/07/20,858,518 | 05/27/17,918,555 | 06/28/16,169,355 | 04/28/16,842,626 | 03/31/00,164,831 | 02/05/99,337,178
05/08/20,223,675 | 05/28/17,341,632 | 06/29/16,961,967 | 04/29/16,485,407 | 04/01/00,728,470 | 02/06/99,718,892
05/09/20,692,646 | 05/29/17,580,160 | 06/30/16,247,797 | 04/30/16,188,588 | 04/03/00,613,163 | 02/08/99,728,872
05/10/20,133,772 | 05/30/17,246,400 | 07/01/16,320,825 | 05/01/16,922,143 | 04/04/00,968,261 | 02/09/99,082,824
05/11/20,355,056 | 05/31/17,419,599 | 07/02/16,132,790 | 05/02/16,668,996 | 04/05/00,652,488 | 02/10/99,600,682
05/12/20,248,093 | 06/01/17,952,561 | 07/03/16,246,001 | 05/03/16,093,867 | 04/06/00,617,735 | 02/11/99,399,434
05/13/20,010,523 | 06/02/17,212,119 | 07/04/16,514,124 | 05/04/16,122,685 | 04/07/00,775,487 | 02/12/99,159,124
05/14/20,299,703 | 06/03/17,310,830 | 07/05/16,310,096 | 05/05/16,941,539 | 04/08/00,731,693 | 02/13/99,581,325
05/15/20,007,130 | 06/04/17,746,752 | 07/06/16,601,877 | 05/06/16,683,275 | 04/10/00,070,732 | 02/15/99,474,471
05/16/20,315,401 | 06/05/17,772,838 | 07/07/16,020,446 | 05/07/16,095,585 | 04/11/00,387,940 | 02/16/99,242,756
05/17/20,049,165 | 06/06/17,049,630 | 07/08/16,286,336 | 05/08/16,561,963 | 04/12/00,049,157 | 02/17/99,600,998
05/18/20,933,569 | 06/07/17,155,268 | 07/09/16,698,412 | 05/09/16,457,168 | 04/13/00,866,620 | 02/18/99,595,537
05/19/20,260,400 | 06/08/17,839,283 | 07/10/16,404,767 | 05/10/16,811,202 | 04/14/00,376,558 | 02/19/99,780,549
05/20/20,850,225 | 06/09/17,293,691 | 07/11/16,306,753 | 05/11/16,475,246 | 04/15/00,981,442 | 02/20/99,940,415
05/21/20,716,182 | 06/10/17,742,059 | 07/12/16,782,944 | 05/12/16,501,032 | 04/17/00,736,675 | 02/22/99,893,632
05/22/20,912,766 | 06/11/17,582,426 | 07/13/16,648,766 | 05/13/16,735,210 | 04/18/00,608,329 | 02/23/99,225,704
05/23/20,675,305 | 06/12/17,307,062 | 07/14/16,514,043 | 05/14/16,380,188 | 04/19/00,377,655 | 02/24/99,146,680
05/24/20,361,218 | 06/13/17,615,311 | 07/15/16,465,656 | 05/15/16,671,141 | 04/20/00,685,652 | 02/25/99,109,812
05/25/20,083,896 | 06/14/17,638,316 | 07/16/16,446,736 | 05/16/16,305,880 | 04/21/00,751,388 | 02/26/99,146,995
05/26/20,716,021 | 06/15/17,297,314 | 07/17/16,046,150 | 05/17/16,448,859 | 04/22/00,960,813 | 02/27/99,244,463
05/27/20,247,905 | 06/16/17,434,446 | 07/18/16,465,078 | 05/18/16,521,538 | 04/24/00,880,406 | 03/01/99,677,935
05/28/20,207,123 | 06/17/17,140,345 | 07/19/16,325,181 | 05/19/16,752,919 | 04/25/00,930,123 | 03/02/99,446,451
05/29/20,429,515 | 06/18/17,061,976 | 07/20/16,775,267 | 05/20/16,080,993 | 04/26/00,703,930 | 03/03/99,693,817
05/30/20,456,492 | 06/19/17,509,823 | 07/21/16,977,825 | 05/21/16,765,189 | 04/27/00,071,177 | 03/04/99,936,366
05/31/20,151,154 | 06/20/17,801,711 | 07/22/16,604,031 | 05/22/16,557,241 | 04/28/00,509,523 | 03/05/99,919,397
06/01/20,942,395 | 06/21/17,682,902 | 07/23/16,237,106 | 05/23/16,018,187 | 04/29/00,666,541 | 03/06/99,355,378
06/02/20,041,095 | 06/22/17,769,947 | 07/24/16,041,825 | 05/24/16,335,655 | 05/01/00,060,609 | 03/08/99,876,867
06/03/20,396,353 | 06/23/17,621,028 | 07/25/16,941,094 | 05/25/16,472,678 | 05/02/00,554,787 | 03/09/99,541,255
06/04/20,325,437 | 06/24/17,189,103 | 07/26/16,417,074 | 05/26/16,513,018 | 05/03/00,166,551 | 03/10/99,325,061
06/05/20,905,430 | 06/25/17,883,930 | 07/27/16,660,315 | 05/27/16,790,344 | 05/04/00,605,953 | 03/11/99,303,197
06/06/20,226,177 | 06/26/17,008,770 | 07/28/16,804,194 | 05/28/16,937,891 | 05/05/00,756,352 | 03/12/99,572,151
06/07/20,785,397 | 06/27/17,751,780 | 07/29/16,997,840 | 05/29/16,510,216 | 05/06/00,033,144 | 03/13/99,810,785
06/08/20,941,421 | 06/28/17,170,500 | 07/30/16,226,477 | 05/30/16,048,889 | 05/08/00,676,479 | 03/15/99,809,208
06/09/20,916,410 | 06/29/17,828,756 | 07/31/16,407,439 | 05/31/16,313,536 | 05/09/00,892,651 | 03/16/99,118,834
06/10/20,???,??? | 06/30/17,603,979 | 08/01/16,603,554 | 06/01/16,603,077 | 05/10/00,696,603 | 03/17/99,935,603